1870    Tower Subway, the world's first underground tube railway, opens in London.

1897    The Boston subway opens, becoming the first underground rapid transit system in North America.

1918    Malbone Street Wreck: the worst rapid transit accident in US history occurs under the intersection of Malbone Street and Flatbush Avenue, Brooklyn, New York City, with at least 93 deaths.

1927    The Ginza Line, the first subway line in Asia, opens in Tokyo, Japan.

1954    The Yonge Street subway line opens in Toronto. It is the first subway in Canada.

1995    289 people are killed and 265 injured in Baku Metro fire, the deadliest subway disaster.

1998    Two white separatists are arrested in Nevada and accused of plotting a biological attack on New York City subways.