Short answers, pulled from the story.
Tony Stark was born on the 16th of December 1991, and his parents Howard and Maria Stark were killed in a car accident in the Bahamas on that same day. The accident was actually a calculated assassination orchestrated by the Winter Soldier to steal the Super Soldier Serum Howard was developing.
Tony Stark became Iron Man after being critically wounded and imprisoned by the Ten Rings in Afghanistan in 2010. He built a suit of powered armor with fellow captive Ho Yinsen to escape, and The Chronicles newspaper later dubbed his alter-ego The Iron Man even though the suit was made of titanium gold.
Tony Stark developed PTSD from his experiences during the alien invasion in 2012 when he intercepted a nuclear missile through a wormhole to save New York City. He responded to the trauma by building several dozen Iron Man suits and creating friction with his girlfriend Pepper Potts.
Tony Stark supported the Sokovia Accords because of his role in Ultron's creation and the devastation of Sokovia. During the battle at Leipzig/Halle Airport in 2016, Rogers and Barnes escaped, James Rhodes was paralyzed, and Stark later discovered that Helmut Zemo had framed Barnes for killing Stark's parents.
Tony Stark died in 2023 after using the Infinity Stones to disintegrate Thanos and his forces, which fatally injured him. He left behind glasses that can access his artificial intelligence E.D.I.T.H. and established Peter Parker as his chosen successor.