MONROE - The Monroe American Legion Post 84 and Auxiliary Unit will celebrate the 90th birthday of the American Legion organization on Saturday, March 21, at the American Legion Post Home, 1625 12th Ave. All members and their families are invited. A social hour will start at 5:30 p.m. and a potluck dinner to follow at 6:30 p.m. Fifty year members will be honored. Bring a dish to pass and table service. Beverages will be furnished.