Labels:text | screenshot | font OCR: Originally part of the Maya heartland, between 1798 and 1981 Belize was effectively a British colony. Q 1919 Demands for more political rights by black Belizeans returning from World War I. Q 1936 New constitution with limited franchise. O 1950 PUP formed. Voting age for women reduced from 30 to 21. 0 1954 Full adult suffrage. 1972 Guatemala threatens invasion. Britain sends troops. 0 1980 UN passes unopposed - except by Guatemala - resolution calling for independence. 0 1981 Full independence.