The US Senate Resolution on National Tartan Day was passed on March 20, 1998. Tartan Day is a celebration of Scottish heritage on 6 April, the date on which the Declaration of Arbroath was signed in 1320.
It commemorates the
Scottish Declaration of Independence, from which the American
Declaration of Independence was modeled. It also recognizes
achievements of Americans of Scottish descent. National Tartan
Day parades occur in major cities on or around April 6. They
often feature bag-pipe bands playing Scottish music and people
dressed in kilts with tartan patterns that represent their
Apr 1, 2016
On April 6, 2016 the US celebrates National Tartan Day, established by Congress in 1997 as a way to recognize Scottish-American citizens. Thirty four states have their own official tartan. Like official flowers and birds, the patterns in have been adopted by legislators as legitimate state symbols.