Out of Town: New York

What’s happening the next few weeks:

* The Whitney Museum of American Art today opens “The American Century: Art and Culture 1900-2000.” Only the first half of the show, examining the years 1900-1950, will be presented now, with the second half to follow in October. In all, 1,400 works--from painting to design to material on dance and film--will explore the changing American character in the 20th century through the eyes of artists. 945 Madison Ave. Open Tues.-Wed., 11 a.m.-6 p.m.; Thurs., 1-8 p.m.; Fri.-Sun., 11 a.m.-6 p.m. $12.50; $10.50 seniors-students. (212) 570-3676.

* “The Civil War,” a new musical based on letters, diaries and other accounts of the war between the states, opens today at the St. James Theatre, 246 W. 44th St. $20-$75. (800) 432-7250.

* The musical revue “The Gershwins’ Fascinating Rhythm,” directed by Mark Lamos with choreography by David Marques, opens Sunday at the Longacre Theatre, 220 W. 48th St. $20-$75. (800) 432-7250.

* The Lincoln Center will present the world premiere of “HOW! DO! WE! DO!” May 24 and May 27. The dance, music and spoken-word collaboration features choreographer-dancer Bill T. Jones and world-renowned soprano Jessye Norman. At City Center, West 55th Street. (212) 581-1212.