On this day in 1920, the 19th amendment to United States Constitution took effect, giving women the right to vote.
On this day in 1970, the then new feminist movement, led by Betty Friedan, organized a Women's Strike for Equality in the United States.
On this day in 1999, Russia began the Second Chechen War.
And on this day in 2002, Earth Summit 2002 began in Johannesburg, South Africa.