1882    The Anglo-French Convention of 1882 marks the territorial boundaries between Guinea and Sierra Leone.

1961    Sierra Leone is granted its independence from the United Kingdom, with Milton Margai as the first Prime Minister.

1961    Sierra Leone joins the United Nations.

1971    Sierra Leone becomes a republic.

1971    Sierra Leone becomes a republic, and Siaka Stevens the president.

1997    A military coup in Sierra Leone replaces President Ahmad Tejan Kabbah with Major Johnny Paul Koromah.