JUNE 29, 2012: NHL and NHL Players Association open negotiations with 21/2-hour meeting in New York.
JULY 13: In first offer, NHL proposes reduction in hockey-related revenue to players from 57 percent to 46 percent. NHLPA says number is closer to 43 percent.
AUG. 14: Players make first offer, accepting a smaller percentage of revenue for players and an expanded revenue-sharing program.
AUG. 15: NHL rejects offer; Bettman says sides "have different views of the world and the issues."
AUG. 28-29: NHL offers a deal in which players' share of revenue would be 51.6 percent in the first year and 50.5 percent in the second, and wouldn't include rollback on existing contracts. NHLPA rejects it.
SEPT. 16: Lockout begins. It is the second since 2004 and fourth work stoppage for the league in 20 years.
OCT. 11: Start of regular season goes by the boards.
OCT. 16: The NHL presents a plan to split revenue with players 50-50 and ensure contracts will be made whole in ensuing years.
OCT. 18: The PA counters with three alternate concepts, which are dismissed by the league within an hour.
OCT. 26: All games through Nov. 30 are wiped out.
NOV. 24: All games through Dec. 14 are gone, as is All-Star Weekend, scheduled for Jan. 26-27 in Columbus.
NOV. 28-29: Federal mediators meet with both sides in New Jersey without success, but Bettman proposes meetings with players and select owners only, without him and Fehr.
DEC. 10: Games (now a total of 526) canceled through Dec.30.
DEC. 27: NHL sends union 290-page amended proposal with softened stances on individual contract terms and buyouts, hoping to spark talks. NHLPA begins questioning on some elements, numbers-crunching and shaping of counterproposal. DEC. 31: During two afternoon sessions at NHL offices, PA presents what Bettman calls a "comprehensive" response, which league analyzes overnight. He reiterates that a legitimate season of no fewer than 48 games must begin by Jan. 19 and a lot of work remains to be done.
JAN. 1: As the pressure increases, the sides hold small-group meetings during the day, and full bargaining on core issues resumes in Manhattan at 5 p.m.
YESTERDAY: A tentative deal is reached to end the lockout after 113 days. The players' share of hockey-related income will be 50 percent, down from 57, and the salary cap will be $64.3 million in 2013-14, down from $70.2 million for this season. The owners and full PA membership still must vote to ratify the deal. Compiled by Steve Zipay