Austria was annexed to the German Third Reich on 12 March 1938. There had been several years of pressure from Germany and there were many supporters within Austria for the "Heim ins Reich"-movement, both Nazis and non-Nazis.[
Revolution in Haiti
The Haitian Revolution (1791–1804) was a period of brutal conflict in the French colony of Saint-Domingue, leading to the elimination of slavery and the establishment of Haiti as the first republic ruled by people of African ancestry
The Mexican War of Independence (1810–1821) was an armed conflict between the people of Mexico and the Spanish colonial authorities which started on 16 September 1810.
Canada does not really have an "Independence Day" as it has always remained part of the commonwealth of Great Britain. Canada annually celebrates the anniversary of it's Confederation which occurred on July 1, 1867.