Alabama lawyer Morris Dees, who in 1971 founded the storied Southern Poverty Law Center with Julian Bond and Joseph Levin, is the keynoter at the 33rd annual Martin Luther King Jr. Commemoration, whose theme is "Tolerance in America: Its Beauty and Challenges." Known for his innovative lawsuits that crippled some of America's most notorious white supremacist hate groups, Dees continues to monitor hate crimes and civil rights nationwide and has developed a program on teaching tolerance that is used in more than 80,000 schools. The ceremony includes a tribute to the late poet Maya Angelou; unveiling of a portrait of Levi Watkins, the event's founder; and the presentation of MLK Jr. Community Service Awards to eight Johns Hopkins employees. Noon to 1:30 p.m., Turner Auditorium, East Baltimore.
Acclaimed Latvian violinist Gidon Kremer, whose style has been described as "fearlessly idiosyncratic," performs in the Shriver Hall Concert Series with pianist Daniil Trifonov and cellist Giedre Dirvanauskaite. Works by Schubert, Mozart, and Rachmanioff are on the program. 5:30 p.m. $42, $21 non-JHU students, free for JHU students; go to shriverconcerts.org. Homewood campus.
Editor's note: This event has been rescheduled for April 30
Leaders + Legends welcomes Amtrak President and CEO Joseph Boardman, under whose tenure Amtrak has posted record ridership and ordered a new fleet of locomotives for the Northeast corridor. 7:30 to 9 a.m. $35 including breakfast. RSVP to firstname.lastname@example.org. Legg Mason Tower, Harbor East.
The Shriver Hall Concert Series welcomes the Jerusalem Quartet in a program of works by Haydn, Schulhoff, and Schubert. 5:30 p.m. $42, $21 non-JHU students, free for JHU students; go to shriverconcerts.org. Homewood campus.
The Greg Osby Group performs two sets in the Jazz at the Hopkins Club series. 8:30 and 10 p.m. $25, $15 students. Reservations required; 410-235-3435. Homewood campus.