<P> In 1860, the colonies of New Brunswick and Nova Scotia followed the Province of Canada in adopting a decimal system based on the U.S. dollar unit . </P> <P> Newfoundland went decimal in 1865, but unlike the Province of Canada, New Brunswick, and Nova Scotia, it decided to adopt a unit based on the Spanish dollar rather than on the U.S. dollar, and there was a slight difference between these two units . The U.S. dollar was created in 1792 on the basis of the average weight of a selection of worn Spanish dollars . As such, the Spanish dollar was worth slightly more than the U.S. dollar, and likewise, the Newfoundland dollar, until 1895, was worth slightly more than the Canadian dollar . </P> <P> The Colony of British Columbia adopted the British Columbia dollar as its currency in 1865, at par with the Canadian dollar . When British Columbia joined Confederation in 1871, the Canadian dollar replaced the British Columbia dollar . </P> <P> In 1871, Prince Edward Island went decimal within the U.S. dollar unit and introduced coins for 1 ¢ . However, the currency of Prince Edward Island was absorbed into the Canadian system shortly afterwards, when Prince Edward island joined the Dominion of Canada in 1873 . </P>

When was the last time the canadian dollar was higher than the american dollar