Vostok is the series of six manned Russian spacecraft launched in 1961 - 63. Vostok I carried the first human, Yuri Gagarin. Valentina Tereshkova (first woman astronaut) flew aboard Vostok 6.

More than a million babies worldwide have been concieved through in vitro fertilization. Louis Brown was the first IVF child.

Knebworth house, 50 km from London, is world's famous rock avenue. It was once home to an Indian viceroy and New Delhi's architect Edwin Lutyens.

Enola Gay, the aircraft that dropped an atomic bomb on Hiroshima and Nagasakki, is being displayed at the Smithsonian's Air and Space museum.