Climax and split : NUMBER@1 -- NUMBER@2 In the spring of NUMBER@1 , ORGANIZATION@1 activists led an effort on the campuses called `` Ten Days of Resistance '' and local chapters cooperated with the ORGANIZATION@2 in rallies , marches , sit-ins and teach-ins , which culminated in a one-day strike on April NUMBER@3 .

In the spring of NUMBER@1 , ORGANIZATION@1 activists led an effort on the campuses called `` Ten Days of Resistance '' and local chapters held rallies , marches , sit-ins and teach-ins , ending in a one-day strike on April NUMBER@3 .
