what is T shirt history and cultures,

A T-shirt (T shirt or tee) is a style of shirt. A T-shirt's defining characteristic is the T shape made with the body and sleeves. It is normally associated with short sleeves, a round neck line, and no collar.

T-shirts are typically made of cotton fibers (sometimes others), knitted together in a jersey stitch that gives a T-shirt its distinctive soft texture. The majority of modern T-shirts have a body that is made from a continuously woven tube, so the torso has no side seams. This is accomplished with special weaving machines called circular looms, which produce seamless fabric for tube tops, stockings, and the like. Conventional stitching is used for the waist band, neck band, sleeves and to close the shoulders. The manufacture of T-shirts has become highly automated, and may include fabric cutting by laser or water jet.T-shirt fashions include many styles for both men and women, and for all age groups, including baby, youth, teen, adult and elderly sizes.

A T-shirt with a protest art message on it in the mid-2000s.T-shirts were originally worn as undershirts. Now T-shirts are worn frequently as the only piece of clothing on the top half of the body, other than possibly a bra or
an undershirt (vest). T-shirts have also become a medium for self-expression and advertising, with any imaginable combination of words, art and photographs on display.T-shirt typically extends to the waist. Variants of the T-shirt, like the tank top, crew neck, A-shirt (with the nickname "wife beater"), muscle shirt, scoop neck, and V-neck have been developed. Hip hop fashion calls for "tall-T" T-shirts which may extend down to the knees. A 1990s trend in women's clothing involved tight-fitting "cropped" T-shirts short enough to reveal the midriff. Another popular trend is wearing a short-sleeved T-shirt of a contrasting color over a long-sleeved T-shirt. This is known as "layering". T-shirts that are tight to the body are called fitted, tailored or "baby doll" t-shirts.

Teenagers at a Los Angeles high school, 1974. All are wearing T-shirts; the one on the far left has a hand-written slogan.
T-shirts with bold slogans were popular in the UK in the 1980s.