BBC World Service - Witness History

Vivian Maier: Secret street photographer

The secret street photography of a US nanny in the 1950s and 1960s

On 22 April 1947, a group of famous war photographers founded the agency.

Chambi's dramatic black and white photographs showed indigenous people in a new light.

J. D. 'Okhai Ojeikere, known as Nigeria’s top photographer gained international acclaim

In 1932, a photo of ironworkers eating lunch at the top of a skyscraper was taken

In the 1940s, vulnerable hospital patients were fed sugar to see if their teeth decayed.

In 2013 a new tax was approved in one of the world’s biggest consumers of fizzy drinks

On 14 May 1955, eight Soviet countries met to sign the Warsaw Pact.

In 1915, two rival electricity pioneers were told they would share a Nobel Prize

In 1980, Finnish singer Marion Rung won Intervision, the USSR's answer to Eurovision