Tartan Day is an observance in North America that celebrates Scottish heritage on April 6, the day when the Declaration of Arbroath was signed in 1320. Initially established in Canada during the mid-1980s, it later gained popularity in other Scottish diaspora communities in the 1990s. In Australia, a similar event known as International Tartan Day is observed on July 1, commemorating the repeal of the 1747 Act of Proscription, which prohibited the wearing of tartan.