March 31, 2009 - The HWS Group and the NBA Development League make a joint announcement at the Naismith Memorial Basketball Hall of Fame that Springfield, MA had been awarded an expansion NBA D-League franchise to begin play for the 2009-10 season. The Springfield franchise joins the Maine Red Claws as the first two NBA D-League franchises to be located in New England.
June 30, 2009 - The name 'Springfield Armor' and the team's logos and colors are unveiled at a press conference at the team's home for its inaugural season, the MassMutual Center in downtown Springfield. The name 'Armor' was voted on by fans in a 'Name the Team' contest and the name pays tribute to the historic Springfield Armory, which has served as a symbol of strength and stability for Western Massachusetts and the United States as a whole since George Washington authorized its creation in 1777.
July 29, 2009 - Former Boston Celtics' guard Dee Brown is named the first head coach in Springfield Armor history. Kevin Whitted is also named the first assistant coach in franchise history.
November 27, 2009 - The Armor play their first-ever game, dropping a 106-73 decision to the Iowa Energy inside the MassMutual Center .
December 18, 2009 - The Armor win their first game in franchise history, defeating the Fort Wayne Mad Ants 112-107 in overtime. JamesOn Curry scored a game-high 31 points to pace the Armor.
November 11, 2010 - The Armor and the New Jersey Nets announce a 'hybrid single affiliation' partnership (the second such partnership in league history) to begin for the 2011-12 season, allowing the Nets to take control of the Armor's basketball operations, while the Armor's local ownership group retains control over the team's business operations. The Armor had previously been affiliated with the Nets, the New York Knicks and the Philadelphia 76ers.
September 14, 2011 - The Nets hire veteran coach Bob MacKinnon as the second head coach in Armor history. MacKinnon is joined six days later by new assistant coach Chris Carrawell and along with Nets' general manager of minor league operations, Milton Lee, make up the Armor's new basketball operations staff under the Nets' control.
April 7, 2012 - The Armor complete the greatest single-season turnaround in NBA D-League history, capturing their first-ever Eastern Division championship, earning their first-ever playoff berth and finishing with a team-record 29 regular season wins, a 16-win improvement over the previous season.
April 15, 2012 - The Armor win their first playoff game in franchise history, topping the Canton Charge 125-116 in overtime to tie their best-of-three playoff series 1-1 (the Armor would go on to drop the decisive third game).
August 20, 2013 - The Nets hire NBA veteran Doug Overton as the third head coach in Armor history. Overton joins the Armor after spending the previous five seasons as an assistant coach and player development coach with the Nets. In his 11-year NBA career, Overton appeared in 499 games with eight teams and holds career averages of 4.5 points, 1.3 rebounds and 2.1 assists in 14.6 minutes per game.