How a humble Dutch merchant, Antonie van Leeuwenhoek, became the first person to peer into a world of tiny creatures invisible to the naked eye. Show more
Discover 11,128,835 listings and 279,758 playable programmes from the BBC
How a humble Dutch merchant, Antonie van Leeuwenhoek, became the first person to peer into a world of tiny creatures invisible to the naked eye. Show more