| 30 July 1619 | North America [law and government] | Limited representative government comes to the colony of Virginia, North America, in the form of a House of Burgesses, whose decrees are subject to approval by the English crown. This is the first such assembly in North America. |
| 30 July 1784 | France [births and deaths] | Denis Diderot, French philosopher of the Enlightenment, editor of the Encyclopédie/Encyclopedia, dies in Paris, France (71). |
| 30 July 1818 | England [births and deaths] | Emily Brontë, English novelist known for Wuthering Heights (1847), born in Thornton, Yorkshire (now West Yorkshire), England (–1848). |
| 30 July 1863 | USA [births and deaths] | Henry Ford, US industrialist who develops the mass-production of cheap Ford cars, born in Wayne County, Michigan (–1947). |
| 30 July 1898 | German Empire [births and deaths] | Otto von Bismarck, founder and first chancellor of the German Empire 1871–90, dies in Hamburg, Germany (83). |
| 30 July 1913 | Balkans [Balkan wars (1912–13)] | The Balkan states sign an armistice in Bucharest, Romania, ending the Second Balkan War. |
| 30 July 1914 | Russian Empire [World War I (1914–18)] | Russia orders the general mobilization of its armies in response to the Austro-Hungarian declaration of war on Serbia. |
| 30 July–14 August 1932 | USA [Olympic Games] | The 10th Olympic Games are held in Los Angeles, California. The USA wins 16 gold medals; Italy, 12; France, 10; Sweden, 9; Japan, 7; Hungary, 6; Finland, 5. National flags and the three-tiered victory stand are used in medal ceremonies for the first time; photo-finish equipment is first used in track events. The games are attended by 1.25 million spectators. Mildred ‘Babe’ Didrikson of the USA wins a gold medal in the javelin and the 80 m hurdles, and a silver medal in the high jump. Kusuo Kitamura of Japan, aged 14 years and 309 days, wins the men's 1,500-m freestyle swimming gold medal. US athlete Eddie Tolan wins the men's 100-m and 200-m gold medals. |
| 30 July 1934 | Austria [political events] | The ‘Fatherland Front’ politician Kurt von Schuschnigg is appointed Austrian chancellor following the assassination of Engelbert Dollfuss by the Nazis. |
| 30 July 1966 | UK [television] | The football World Cup final between England and Germany is watched by 33 million viewers in Britain. |
| 30 July 1966 | UK, West Germany [football] | The host nation, England, wins football's World Cup, beating West Germany in the final at Wembley, London, 4–2 after extra time. The England forward Geoff Hurst scores the first ever hat trick in a World Cup final. |
| 30 July 1980 | New Hebrides, France, UK [decolonization] | The New Hebrides, in the Pacific, become independent from Britain and France within the Commonwealth as Vanuatu. |
| 30 July 1995 | Chechnya, Russia [political events] | Chechen and Russian representatives sign a peace agreement in Grozny, the capital of the breakaway republic of Chechnya. |
| 30 July 2006 | UK [television] | British television's weekly pop music chart show Top of the Pops comes to an end after 42 years. |
