Short answers, pulled from the story.
M&T Bank Stadium opened in 1998 and has been the home of the Baltimore Ravens of the National Football League since that year. The stadium has a listed capacity of 70,745 and sits immediately adjacent to Oriole Park at Camden Yards.
M&T Bank signed a 15-year, $75 million contract with the Ravens for the naming rights in 2003, brokered by Team Services, LLC. The deal was renewed in 2023, extending the name through 2037.
The land was previously the site of the Wm. Knabe and Co. piano factory, which closed during the Great Depression. A sidewalk keyboard mosaic on the southwest corner of the stadium honors the factory's legacy.
Unitas Plaza is the named plaza in front of the main entrance to M&T Bank Stadium, honoring Baltimore Colts quarterback Johnny Unitas following his death in September 2002. It features a bronze statue of Unitas, and many Ravens fans rub the foot of the statue as they enter the stadium.
The largest crowd in Ravens history at M&T Bank Stadium was 71,547 fans, who attended the 2011 Divisional Playoff Game on the 15th of January 2012 against the Houston Texans, which the Ravens won 20-13. The biggest concert crowd was 74,557 for U2's 360 Tour on the 22nd of June 2011.
The current playing surface at M&T Bank Stadium is natural grass, specifically Tifway 419 Bermudagrass, reinstalled for the 2016 season. The stadium originally had natural grass before switching to artificial turf in 2003, and then back to grass in 2016.