Most days, you probably throw on a T-shirt without even thinking twice. They're super easy to wear, especially as the weather starts to get brighter and warmer, and they come in a variety of styles to suit your personal taste - a win-win.
But have you ever stopped to wonder where the popular garment got its name? Many people are only just realising that there's a reason behind the 'T' at the beginning of 'T-Shirt' - and it isn't just a coincidence.
Social media has been sent into a frenzy about what it stands for, with many making incorrect assumptions.
TikToker Marvin Hindle asked people to guess what the 'T' stood for in t-shirt, and in the comments, people guessed things like 'training' and 'top' - but these assumptions aren't correct.
Elsewhere on the forum Quora, people were debating why T-shirts were called that, and one woman wrote: "I always thought it was because when a t-shirt is laying flat, it looks like the shape of the letter 'T'. I could be all wrong, though, and it could be much deeper than that!"
Someone confirmed that it was because of the "large T-shaped cloth" that t-shirts are made out of. The Quora user also stated that they weren't sure exactly when the name originated, but they thought it was the "20th century."
In fact, according to QTag, the reason is "because of the t-shape made through the body and the arms. Traditionally short-sleeved it is also available with long or three-quarter-length sleeves."
People were reportedly "too stunned to speak" when they found out the reason behind the name.
Did you know this? Let us know in the comments.