In the 19th century, the idea of underwear developed, which had not been common before. At some point near the turn of the century, the underwear shirt was developed; the shirt was always a part of clothing since ancient Egypt, though it slowly became more and more popular. Hence, there have been many garments that resemble the T-shirt, though the general trend supported the possibility of less clothing, which prudent morale had forbidden until the 19th century. The origin of the T-Shirt is obscure claims reach at least from California to Britain, and from 1913 to 1948, and it was most likely a slow development during that time.
Most research mentions this possibility that the idea of the T-shirt came to the United States during World War I when US soldiers noticed the light cotton undershirts European soldiers were using while the US soldiers sweated in their wool uniforms. Since they were so much more comfortable they quickly became popular among the Americans, and because of