1895 German physicist Wilhelm Conrad Röntgen discovered X-Rays

2003 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission

1808 The slave trade became illegal when the United States enacted a law banning the importation of slaves

1924 Astronomer Edwin Hubble formally announced that the Milky Way is just one of many galaxies in the universe

1959 Cuban dictator Fulgencio Batista ousted by Castro-led revolution

1903 Innovation of the aeroplane

1945 International Monetary Fund was formally established by 29 member countries

2018 WHO officially announced it will categorize gaming addiction as a mental health condition

1964 United States President Lyndon B. Johnson signed the Civil Rights Act into law

1835 The Treaty of New Echota was signed between the United States Government and representatives of a minority Cherokee Political Faction

1994 Nelson Mandela sworn in as the first black president of South Africa

1863 President Abraham Lincoln signed the Emancipation Proclamation

1921 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader

1945 The United Nations was officially established

1994 The implementation of the North American Free Trade Agreement

1993 Czechoslovakia was divided into two independent states