Captain America is a World War II veteran who was enhanced to the peak of human physicality by an experimental serum. Steve Rogers is rejected many time from World War II military duty due to various health and physical issues that he had. Rogers is finally allowed to enlist into the army, and is recruited into Project: Rebirth as part of a "super-soldier" experiment under Dr Abraham Erskine, General Chester Phillips and Agent Peggy Carter. General Phillips is unconvinced of Erskine's claims that Rogers is the right person for the procedure but relents after seeing Rogers commit an act of self-sacrificing bravery. Soon after, Erskine subjects Rogers to the super-soldier treatment, injecting him with a special serum and dosing him with "vita-rays" using a chamber-like device created by Howard Stark. Rogers emerges from the experiment taller and muscular. His subsequent amazing WWII exploits made him a living legend. Steve saved New York City and turned the tide of the war, but crashed into the Arctic during his final mission. Awakening in the modern day, Steve learned that he had spent decades frozen in the icy tundra. Now, Steve Rogers finds himself alone in a modern world that he hardly recognizes. When Nick Fury, director of the international peacekeeping agency S.H.I.E.L.D., calls on Rogers to help save the world again, he quickly suits up as Captain America, taking up his iconic shield and bringing his strength, leadership and no-nonsense attitude to The Avengers.
Powers and abilities
Captain America has no superhuman powers, although as a result of the Super-Soldier Serum and "Vita-Ray" treatment, he is transformed from a frail young man into a "perfect" specimen of human development and conditioning. Captain America's strength, endurance, agility, speed, reflexes, durability, and healing are at the zenith of natural human potential. Rogers' body regularly replenishes the super-soldier serum; it does not wear off.
The formula enhances all of his metabolic functions and prevents the build-up of fatigue poisons in his muscles, giving him endurance far in excess of an ordinary human being. This accounts for many of his extraordinary feats, including bench pressing 1200 pounds (545 kg) and running a mile (1.6 km) in 73 seconds (49 mph/78 kph). Furthermore, his enhancements are the reason why he was able to survive being frozen in suspended animation for decades. Rogers cannot become intoxicated by alcohol, drugs, or impurities in the air and is immune to terrestrial diseases. He is also highly resistant to hypnosis or gases that could limit his focus. The secrets of creating a super-soldier were lost with the death of its creator, Dr. Abraham Erskine. However, in the ensuing decades there have been numerous secret attempts to recreate Erskine's treatment, only to have them end in failure.
Rogers' battle experience and training make him an expert tactician and an excellent field commander, with his teammates frequently deferring to his orders in battle. Rogers' reflexes and senses are also extraordinarily keen. He has blended judo, western boxing, kickboxing, and gymnastics into his own unique fighting style and is a master of multiple martial arts. Years of practice with his indestructible shield make him able to aim and throw it with almost unerring accuracy. His skill with his shield is such that he can attack multiple targets in succession with a single throw or even cause a boomerang-like return from a throw to attack an enemy from behind. In canon, he is regarded by other skilled fighters as one of the best hand-to-hand combatants in the Marvel Universe. Although the super-soldier serum is an important part of his strength, Rogers has shown himself still sufficiently capable against stronger opponents, even when the serum has been deactivated reverting him to his pre-Captain America physique.
Rogers has vast U.S. military knowledge and is often shown to be familiar with ongoing, classified Defense Department operations. He is an expert in combat strategy, survival, acrobatics, military strategy, piloting, and demolitions. Despite his high profile as one of the world's most popular and recognizable superheroes, Rogers also has a broad understanding of the espionage community, largely through his ongoing relationship with S.H.I.E.L.D. He occasionally makes forays into relatively mundane career fields, including commercial arts, comic book artistry, education (high school history), and law enforcement.
Steve Rogers was frozen in ice for nearly 70 years before waking up in the 21st century. It is believed that the SSS serum is responsible for keeping him alive all that time because any other normal human would be dead. It is also theorized that the SSS dramatically slows Rogers' aging due to extensively healthy cells. Even though he did survive and was found, it is quite possible he may age slowly than that of normal humans and might have been the same even up to now. It is unclear at this time if the serum also helps extend his lifespan but it may be possible.
Captain America's Shield: A circular disk about 2.5 feet in diameter, weighing 12 pounds, it was made of a Vibranium, the rarest metal on Earth at the time. The amount of Virbranium used for Cap's shield is the all the Vibranium that the United States had access to. The Shield was made by Howard Stark. The shield is three times lighter than steel and negates large amounts of damage by absorbing vibrations. The shield had great aerodynamic properties: it was able to slice through the air with minimal wind resistance and deflection of path. Its great overall resilience, combined with its natural concentric stiffness, enabled it to rebound from objects with minimal loss of angular momentum. It was virtually indestructible: it was resistant to penetration, and extreme temperature extremes.
Uniform: Rogers and Howard Stark both design the suit. It is made of carbon polymer and it offers a medium level of resistance to gunfire. The helmet also served as a mask. And allows for a sidearm. The shield can be attached to the back.
