March 26-29 - Annual league meeting, Phoenix.
April 21 - Deadline for restricted free agents to sign offer sheets.
April 26 - Deadline for prior club to exercise right of first refusal to restricted free agents.
April 27-29 - NFL draft, Philadelphia.
May 22-24 - Spring owners meetings, Chicago.
Aug. 3 - Hall of Fame game.
Aug. 5 - Pro Football Hall of Fame inductions.