20 th Century First silent movie 1903 First powered flight at Kitty Hawk USA (Built by Wright brothers) 1908 Model T ford rolls off production line 1912 Titanic sinks 1911 structure of atom discovered Ballpoint biro goes on sale 1944 END OF WW2 1945 First computer built 1945 Microwave invented 1945 1951 COLOUR TV INTRODUCED BERLIN WALL BUILT 1961 Marilyn Monroe found dead 1962 Marilyn Monroe found dead 1962 Beatles make it big 1963 First test tube baby 1978 Lennon shot 1980 Mandela freed 1989 Internet 1993 Mad cow disease 1996 Di dies 1997