UPDATE Updated to reflect death of Chad President Idriss Deby President Teodoro Obiang Nguema Mbasogo has ruled Equatorial Guinea for more than 40 years – the longest continuous tenure of any current African leader – followed by Cameroon’s President Paul Biya who took power in 1982.

Cakes in the shape of entry/exit signs with German football teams FC Schalke 04 and Tasmania Berlin are seen in a bakery, as Schalke could tie the Bundesliga's longest winless streak currently being held by Tasmania Berlin with a loss today, in Dortmund, Germany, January 9, 2021. REUTERS/Leon Kuegeler

Cakes in the shape of entry/exit signs with German football teams FC Schalke 04 and Tasmania Berlin are seen in a bakery, as Schalke could tie the Bundesliga's longest winless streak currently being held by Tasmania Berlin with a loss today, in Dortmund, Germany, January 9, 2021. REUTERS/Leon Kuegeler

Kristofer Frojd (L), head of business development at the power distributor Ellevio, oversees the installation of electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Kristofer Frojd, head of business development at the power distributor Ellevio, oversees the installation of electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Workers of the power distributor Ellevio install electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Workers of the power distributor Ellevio install electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Workers install public electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Workers of the power distributor Ellevio install electric vehicle chargers on Valhallavagen, the city's longest street, as part of preparation for larger numbers of zero-emission cars in Stockholm, Sweden December 4, 2020. Picture taken December 4, 2020. REUTERS/Helena Soderpalm

Labourers work next to the newly constructed Atal Tunnel on the Leh-Manali highway in Sissu village in Lahaul and Spiti district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Labourers work next to the newly constructed Atal Tunnel on the Leh-Manali highway in Dhundi village in Kullu district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Labourers work inside the newly constructed Atal Tunnel on the Leh-Manali highway in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Vehicles move along a road leading to the newly constructed Atal Tunnel on the Leh-Manali highway in Lahaul Valley in Lahaul and Spiti district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

A view shows the south portal gate near the newly constructed Atal Tunnel on the Leh-Manali highway in Dhundi village in Kullu district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

A worker paints the road leading to the newly constructed Atal Tunnel on the Leh-Manali highway in Dhundi village in Kullu district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Vehicles move along a road leading to the newly constructed Atal Tunnel on the Leh-Manali highway in Lahaul Valley in Lahaul and Spiti district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Labourers work inside the newly constructed Atal Tunnel on the Leh-Manali highway in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

Workers are seen outside the newly constructed Atal Tunnel on the Leh-Manali highway in Sissu village in Lahaul and Spiti district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

A view of the newly constructed Atal Tunnel on the Leh-Manali highway in Dhundi village in Kullu district in the northern state of Himachal Pradesh, India, September 22, 2020. The tunnel is named after India's former Prime Minister Atal Bihari Vajpayee and is reported to be one of India's longest motorable tunnels, at an altitude of over 3,000 metres, and passes under the Rohtang Pass in the eastern Pir Panjal mountain range on the Leh-Manali highway. Picture taken September 22, 2020. REUTERS/Stringer

A wide angle view of the Plaza of the Glyphs, a patio with 42 painted signs and symbols on the floor marking the longest Teotihuacan text found so far, dated to probably between 300-400 A.D., at La Ventilla, an extensively excavated neighborhood in the ancient ruins of Teotihuacan, in San Juan Teotihuacan, northeast of Mexico City, Mexico November 7, 2019. Picture taken November 7, 2019. REUTERS/Gustavo Graf

A close up of the Organ Key system in the Church ahead of a performance of John Cage's work "As Slow As Possible" as the first note change in seven years happened, in Halberstadt Germany September 5, 2020. REUTERS/Michele Tantussi

A close up of the Organ Key system in the Church ahead of a performance of John Cage's work "As Slow As Possible" as the first note change in seven years happened, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Austrian sportsman Josef Koeberl gestures after setting a new World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl eats an ice cream after setting a new World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl waves after setting a new World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl gestures after setting a new World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

visitors enter the Church ahead of a performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Visitors enter the Church ahead of a performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Professor Rainer O. Neugebauer speaks as visitors enter the Church ahead of a performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

The Organ stands ahead of a performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

The Organ stands ahead of a performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany, September 5, 2020. REUTERS/Michele Tantussi

People attend an organ performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

People attend at an organ performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

People attend at an organ performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

A sheet music is seen on display during an organ performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Musicians Johanna Vargas, Julian Lembke change an organ's pipe during a performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Musician Johanna Vargas, is seen during an organ performance of John Cage's work "As Slow As Possible" with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

Professor Rainer O. Neugebauer and Musicians Johanna Vargas and Julian Lembke change an organ's pipe during a performance of John Cage's work "As Slow As Possible", with the first note change in seven years, in Halberstadt, Germany September 5, 2020. REUTERS/Michele Tantussi

A kid dressed in traditional clothes dances as Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl looks on as he stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger TPX IMAGES OF THE DAY

Austrian sportsman Josef Koeberl looks on as he stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl looks on as he stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Kids dressed in traditional clothes dance as Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin as he tries to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin as he tries to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin as he tries to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl looks on as he stands still in an ice-filled glass cabin trying to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin as he tries to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl stands still in an ice-filled glass cabin as he tries to set a World Record of staying in ice, in Melk, Austria, September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl talks to journalists before he tries to set a World Record for staying in ice, in Melk, Austria September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl prepares before he tries to set a World Record for staying in ice, in Melk, Austria September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl wears a protective face mask before he tries to set a World Record for staying in ice, in Melk, Austria September 5, 2020. REUTERS/Leonhard Foeger

Austrian sportsman Josef Koeberl checks a glass cabin as he tries to set a World Record for staying in ice, in Melk, Austria September 5, 2020. REUTERS/Leonhard Foeger

Hedva Opatovsky, the longest-serving flight attendant for El Al, the Israeli flag carrier, closes an overhead compartment onboard the return trip to Abu Dhabi which was her last flight before retiring, upon the plane's landing at Ben Gurion International airport in Lod, near Tel Aviv, Israel September 1, 2020. Picture taken September 1, 2020. REUTERS/Nir Elias/Pool

A closely packed group of demonstrators stand with a sign reading "Racism is Our Longest Plague" at the "Get Your Knee Off Our Necks" Commitment March on Washington 2020 at the Lincoln Memorial where Rev. Martin Luther King Jr delivered his "I Have a Dream" speech 57 years ago today in Washington, U.S., August 28, 2020. REUTERS/Tom Brenner

Protestors stand with a sign reading "Racism is Our Longest Plague" at the "Get Your Knee Off Our Necks" Commitment March on Washington 2020 at the spot where Rev. Martin Luther King Jr delivered his "I Have a Dream" speech 57 years ago today in Washington, U.S., August 28, 2020. REUTERS/Tom Brenner

An aerial view shows Iraq's Fao western port Breakwater that was included by Guinness for being the longest breakwater in the world, at the Ras al-Bisha, in Basra, Iraq August 18, 2020. Picture taken August 18, 2020. Picture taken with a drone. REUTERS/Mohammed Aty