Despite its long-standing origins, Thanksgiving has only begun to become an important national holiday in the US since the 19th century. Earlier, the first US president, George Washington, announced a nationwide Thanksgiving November 26, 1789 but this form was not maintained because then each region or state organized itself.
Abraham Lincoln was the first president to declare Thanksgiving a yearly holiday for the United States. Thanksgiving began to be celebrated on Thursday in the fourth week of November from 1941 under President Franklin D. Roosevelt. So this day may not be the last Thursday of November as many people mistakenly think (for example, there are 5 Thursdays in 2012). For many Americans, Thanksgiving is symbolic. Trong is associated with the founding nation’s legend. Pilgrims on the Mayflower in 1960 were the first to set foot in the New World, surviving and building the first colony of Massachusetts.