Short answers, pulled from the story.
The Boston Celtics of the NBA and the Boston Bruins of the NHL both play their home games at TD Garden. The arena is owned by Delaware North, the food service and hospitality conglomerate whose CEO, Jeremy Jacobs, also owns the Bruins.
TD Garden opened the night after a farewell ceremony was held at the original Boston Garden on the 29th of September, 1995. The Boston Bruins played their first game in the new arena on the 7th of October, a 4-4 tie with the New York Islanders.
TD Garden takes its name from TD Bank, a subsidiary of Canada's Toronto-Dominion Bank, which saw the arena renamed TD Garden in July 2009. Delaware North and TD Bank extended the naming rights agreement on the 12th of January, 2023, through the 30th of June, 2045.
TD Garden's construction cost about $160 million on a 3.2 acre site and took 27 months, including seven weeks of delay from heavy snowfall. Construction began on the 29th of April, 1993, after Delaware North secured $120 million in loans the year before.
TD Garden is one of only two NBA arenas with a parquet floor, along with Orlando's Kia Center, and the Celtics are the only NBA team that plays on oak rather than maple. The tradition traces back to Boston Garden, where the original parquet floor was built after World War II due to a lumber shortage.
TD Garden has hosted concerts, comedy shows, WWE pay-per-views, and the 2004 Democratic National Convention, where Massachusetts Senator John Kerry was nominated for president. That same convention featured a keynote address by Senator Barack Obama that sparked speculation about his future presidential run.