On this day in 1870, Tower Subway, the world's first underground tube railway, opened in London, United Kingdom.
On this day in 1934, Adolf Hitler became Führer of Germany following the death of President Paul von Hindenburg.
On this day in 1989, Pakistan was re-admitted to the Commonwealth of Nations after having restored democracy for the first time since 1972.
And on this day in 1990, Iraq invaded Kuwait, eventually leading to the Gulf War.