April 3, 1934: Jane Goodall, friend of chimps. Jane Goodall, famous for studying chimpanzees, was born on this day in 1934 in London. In the forests of Tanzania she saw chimps using twigs as tools to fish for termites. She showed the world that animals have their own personalities.
1933 π§ Two small British biplanes became the first aircraft to fly over the top of Mount Everest, taking photos of the world's highest peak. Mount Everest β
1973 π‘ Engineer Martin Cooper made the first call from a handheld mobile phone on a New York street, using a phone as heavy as a brick.
2007 π‘ A French TGV train zoomed along the tracks at 574.8 kilometres per hour, setting a world speed record for a train running on rails.