The annual St. Patrick’s Day Parade is set to take place in South Boston, following its traditional 3.5-mile route on Sunday. South Boston has been hosting the parade since 1901, and it celebrates Evacuation Day, which marks the day British troops left the city during the American Revolution on March 17, 1776.

Boston is considered the number-one city in America to celebrate St. Patrick’s Day, and the weekend features several events, including the St. Patrick’s Day Road Race and four nights of the Dropkick Murphys’ music. The parade route will be closed during both the road race and parade, so plan accordingly.

Both the St. Patrick’s Day Road Race and the St. Patrick’s Day/Evacuation Day Parade have specific routes and schedules. The 5k road race will begin at 11 a.m. at the Boys and Girls Club on West Sixth Street, and it will follow the parade route, ending at noon.

The parade will start at 1 p.m. from the Broadway T station (red line) and will move along West Broadway to East Broadway, then around the Medal of Honor Park and finish at Andrew Square. During both events, there will be closures along the routes, so be prepared for traffic disruptions.