★★★★★
Prague Spring
A period of political liberalisation in Czechoslovakia under Alexander Dubček ends when Warsaw Pact armies invade the country.
PoliticsRevolution· Czechia, Slovakia, Russia
- 1968
- 1769★★★★★
James Watt patents his steam engine
James Watt's patent for a separate condenser makes steam engines far more efficient, driving the Industrial Revolution.
TechnologyEconomy· United Kingdom