Tartan Day is a celebration of Scottish heritage on 6 April, the date on which the Declaration of Arbroath was signed in 1320. An ad hoc event was held in New York City in 1982, but the current format originated in Canada in the mid-1980s. It spread to other communities of the Scottish diaspora in the 1990s. In Australia the similar International Tartan Day is held on 1 July, the anniversary of the repeal of the 1747 Act of Proscription that banned the wearing of tartan.
Tartan Days typically have parades of pipe bands, Highland dancing and other Scottish-themed events.
In 1982, under the auspices of the New York Caledonian Club, New York State Governor Hugh Carey, and New York City Mayor Ed Koch declared 1 July 1982, as Tartan Day, a one-time celebration of the 200th anniversary of the repeal of the Act of Proscription of 12 August 1747, the law forbidding Scots to wear tartan.
On 9 March 1986, a 'Tartan Day' to promote Scottish heritage in Canada, was proposed at a meeting of the Federation of Scottish Clans in Nova Scotia. Jean Watson, President of Clan Lamont, petitioned provincial legislatures to recognize April 6 as Tartan Day. The first such proclamation was by Nova Scotia in April 1987; other provinces followed suit until Quebec was the last to fall in line, in December 2003.
In Australia, wearing tartan on 1 July has been encouraged since 1989. The day has been promoted as International Tartan Day in Australia since 1996 and has been formally recognised by many states, but not at national level. The United States Senate recognised 6 April as Tartan Day in 1998.
15.1% or 4.7 million Canadians claim Scottish descent. As stated above, Tartan Day in Canada originated with a proposal from the Federation of Scottish Clans in Nova Scotia and has since been proclaimed by all the provincial legislatures. In 2007 Peter Stoffer introduced a Private member's bill for "An Act respecting a Tartan Day". Progress of the bill was interrupted by the 2008 election, but it has been resubmitted.