Botswana By ines2bellaing Jul 1, 1809 Botswana's Borders Jan 28, 1810 British Missionaries Arrive in Botswana Jan 28, 1910 Attempted Annexation of Botswana Jan 1, 1962 Adoption de gouvernement démocratique1 janvier 1962 Sep 30, 1966 Proclamation of independence and Seretse Khama becomes the first President of the Republic of Botswana Oct 17, 1966 Botswana joins the U.N. Jul 13, 1980 Death of Seretse Khama Oct 16, 2009 Ian Khama, eldest son Seretse Khama was elected president Jun 22, 2014 The Okavango Delta is the thousandth site inscribed on the list of UNESCO heritage