Tartan Day is celebrated on April 6th each year, primarily in countries with a Scottish heritage, such as the United States, Canada, and Australia. The day honors the contributions of Scottish immigrants and their descendants, showcasing the rich culture and traditions of Scotland. The date was chosen to commemorate the signing of the Declaration of Arbroath in 1320, a significant document in Scottish history. Tartan Day often features parades, music, and various cultural events, allowing people to celebrate their Scottish roots and the iconic tartan patterns associated with Scottish clans.