Dominica History By Nutnicha 1834 Slavery Was created 1945 First trade union formed in Dominica 1960 Britain granted Dominica self government, with legestative council, cheif minister, 1974 LeBlanc retired; Patrick John (Dlp) New chief minister. Period: 1978 to 1978 Full independance attained under republican constutution. with patrick john as prime minister. 1983 Token Dominican force participated in us invasion of Grenada 2010 Dominica celebrated 32nd anniverary of independance