Demonstrators show marbles they claim police use as projectiles during clashes with teachers who are protesting against a new curriculum set by Bolivia's Ministry of Education, in La Paz, Bolivia March 21, 2023. REUTERS/Claudia Morales 

Friends of Maximo Jerez, 11, who was killed early Sunday when at least one gunman attacked a birthday party, play with marbles at Los Pumitas neighborhood, as the National Government deployed forces to help control escalating violence in river port city of Rosario, Santa Fe province, Argentina March 9, 2023. REUTERS/Agustin Marcarian 

Examples of Benin bronzes which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Visitors arrive to the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville TPX IMAGES OF THE DAY 

An example of a Moai stone figure from Rapa Nui which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A sign for the British Museum which houses the Parthenon sculptures is seen in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A sign for the British Museum which houses the Parthenon sculptures is seen in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An example of a Moai stone figure from Rapa Nui which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of Benin bronzes which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An example of a Moai stone figure from Rapa Nui which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Examples of Benin bronzes which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of Benin bronzes which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Examples of Benin bronzes which, together with collections such as the Parthenon sculptures, are the subject of talks of their return to countries of origin, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views a horse's head which forms part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A visitor information board is positioned beside examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Sections of a Greek temple that form part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A media representative films sections of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A media representative films sections of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Detail of a metope that forms part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, is displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A depiction of a horse's head that forms part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, is displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views a relief which forms part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A cleaner dusts metopes which form part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Reliefs which form part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, are displayed at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A cleaner dusts metopes which form part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

An employee poses as he views examples of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

Sections of a Greek temple that form part of the Parthenon sculptures, sometimes referred to in the UK as the Elgin Marbles, on display at the British Museum in London, Britain, January 25, 2023. REUTERS/Toby Melville 

A marble head of Athena statue is seen among other antiquities worth an estimated $19 million that were returned to Italy by New York City, in Rome, Italy, January 23 2023. REUTERS/Remo Casilli 

A marble head of Athena statue is seen among other antiquities worth an estimated $19 million that were returned to Italy by New York City, in Rome, Italy, January 23 2023. REUTERS/Remo Casilli 

A hooded protester holds a marble during clashes with riot police, following a rally marking the 49th anniversary of the 1973 Athens Polytechnic student uprising, in Thessaloniki, Greece, November 17, 2022. REUTERS/Alexandros Avramidis 

Marble Cycladic female figurines are displayed during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

Marble Cycladic female figurines are displayed during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

People look at marble Cycladic females figurines, during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

People look at marble Cycladic female figurines, during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

A marble Cycladic female figurine is displayed during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

A visitor takes a picture of a marble Cycladic female figurine, during the opening of the exhibition ''Homecoming. Cycladic treasures on their return journey'' at the Museum of Cycladic Art, in Athens Greece, November 2, 2022. REUTERS/Costas Baltas 

The Marble Head of Athena, from 200 B.C.E. and which was looted from a temple in Central Italy, is displayed during a news conference and repatriation ceremony of stolen antiquities to Italy, in New York City, U.S., September 6, 2022. REUTERS/Brendan McDermid 

People wait to cross the street at Marble Arch during a heatwave in London, Britain, August 13, 2022. REUTERS/Kevin Coombs 

A view shows a natural-sized marble statue depicting a sleeping refugee installed by street artist Jago lying on the Sant'Angelo bridge, in Rome, Italy August 6, 2022. REUTERS/Antonio Denti TPX IMAGES OF THE DAY 

A view shows a natural-sized marble statue depicting a sleeping refugee installed by street artist Jago lying on the Sant'Angelo bridge, in Rome, Italy August 6, 2022. REUTERS/Antonio Denti 

A man takes a picture of a natural-sized marble statue depicting a sleeping refugee installed by street artist Jago on the Sant'Angelo bridge, in Rome, Italy August 6, 2022. REUTERS/Antonio Denti 

James Vongue, 8, slides down a marble structure next to stairs at the Lincoln Memorial in Washington, U.S., July 31, 2022. REUTERS/Tom Brenner TPX IMAGES OF THE DAY 

Jan Scruggs, founder of the Vietnam Veterans Memorial, touches the marble wall as Peter Youngblood Hills, says a prayer while holding holy water in Washington, U.S., July 5, 2022. REUTERS/Tom Brenner 

Activists from the Extinction Rebellion that have glued and chained themselves to a car as part of a protest attend a demonstration at Marble Arch in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion sit on the road as part of a protest at Marble Arch in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion sit on the road as part of a protest at Marble Arch in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion that have glued and chained themselves to a car as part of a protest attend a demonstration at Marble Arch in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion that have glued and chained themselves to a car as part of a protest attend a demonstration at Marble Arch in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

An activist from the Extinction Rebellion sits with her hand glued to a fence, as part of a protest in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion drape a banner across Marble Arch as part of a protest in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activist Daniel Hooper, also known as ‘Swampy’, stands on Marble Arch after draping a banner, as part of an Extinction Rebellion protest in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls 

Activists from the Extinction Rebellion drape a banner across Marble Arch as part of a protest in central London, Britain, April 16, 2022. REUTERS/Henry Nicholls