

"◾This day was originally Gordon Freeman's first day of work at Black Mesa, but it was RetConn'ed in Half-Life 2 and its episodes, where it is implied that Gordon was already working for some time at Black Mesa before the incident: Barney tells Gordon he owes him a beer and reminds him who he is when first meeting in the City 17 Train station, and Alyx tells in the City 17 Underground that Gordon and Barney would compete in air ducts to get into Kleiner's office whenever he got himself locked out, among others. The Black Mesa Incident, referred to once as the Lambda Incident, is an infamous catastrophic event resulting from an experiment carried out at the Black. But in the Half-Life Episodes they allude to the time that Gordan once spent in Black Mesa. There was a bit of a "switcheroo" from Valve because initially they made the story to assume Gordan Freeman started work on May 15th somewhere between 2000-2009. Gordon uses Grigori's traps to explore the town." ◾Gordon meets Grigori, Ravenholm's priest. Eli is captured and taken to Nova Prospekt. The base incident on Scarif was from a terrorist rebel cell infiltrating our fine research facilities on Scarif, and violating the rules of warfare to destroy. Gordon escapes the raid and enters the nearby town of Ravenholm. "◾Combine forces led by Breen raid Black Mesa East while Alyx, Dog, and Gordon are in the nearby scrapyard. ◾Barney prevents Gordon from entering a prisoner train and reintroduces both himself and Dr. ◾Under two decades after the Black Mesa Incident, Gordon Freeman is awakened by the G-Man after a long period of stasis, he is placed on a train entering the City 17 Train station. Operation: Black Mesa features reimaginings of both Half-Life Opposing Force and Half-Life Blue Shift. According to the Half-Life Universe Timeline - Valve knew the secrets about the Black Mesa Incident, but were obviously sworn to silence.
