Ethiopia By dani7123456 600 BCE The Kingdom of D'mt is established. 500 BCE The Kingdom of Aksum is formed. 300 BCE The Kingdom of D'mt is overtaken by Aksum. 1531 Ethiopia is invaded by Muslim leader Ahmad. 1632 The Ethiopian Christianity is reinstated. 1889 Treaty between Ethiopia and Italy is signed. 1931 A written constitution is adopted. 1935 Italy invaded Ethiopia. 1942 Italy is defeated and slavery is abolished. 1994 Ethiopia's first multiparty election.