It was first proposed four days after King’s 1968 assassination outside a Memphis motel. It took 15 years until it became a federal holiday.

Stand-up comic Ryan Davis tours all over the country, and this weekend we’ve got him headlining the Comedy Castle. You may have seen him on HBO’s “All Def Comedy,” “Curb Your Enthusiasm” or the show “Insecure.” 7:15 and 9:45 p.m. Fri. and 7 and 9:30 p.m. Sat. $30. 310 S. Troy, Royal Oak. (248) 542-9900. Comedycastle.com.

Another big MLK Day event for the region is the 40th Annual Day of Celebration happening at the Lansing Center, 333 E. Michigan Ave., at 11 a.m. Monday. Civil rights activist Bernard Lafayette will be the keynote speaker. Tickets are $60 and can be purchased at https://greaterlansingmlk.squarespace.com/tickets.