The Portuguese administration of Mozambique lasted for more then four centuries, from the 16th century till late 20th century. September 7 is known in Mozambique as Victory Day, that is observed to celebrate the signing of the Lusaka Accord officially ending the Mozambican War of Independence.
Labor Day is a federal holiday in the United States which falls on the first Monday in September. It was officially established in 1894 by U.S. President Grover Cleveland. It is also celebrated in Canada.