On the question of self govt and responsible govt I wrote the par on the introduction of these to the colonies and I checked the dates thoroughly but an error or two may have crept in It comes back to the question of what a dominion is there is clearly usage of dominion before 1867 and whereas the D of New England was clearly not a capital D Dominion in the later sense whereas there seem to be a number of sources that refer to Newfoundland as being a dominion in 1855 Compared to Canada dominion is rarely used within the Commonwealth of Australia except by scholars The only exception I can think of in popular culture is the Interdominion event in harness racing so called because it also involves horses from the country that used to be called the Dominion of New Zealand where the word is still quite common it seems