As long as cows have been in existence, or the whole Bos primigenius species and subspecies have been in existence.
Drywall as we know it has been around since about 1890.
YouTube has been around since the beginning of 2005. The site was created by some former paypal employees to allow people to share their videos and become famous. The site is free and easy to navigate.
a long time
how long has oil been used for
water wheels have been around since the romans!
Helium is has been in existence since the beginning of the universe.
they have been in existence for 110 years since 1901.
The IUPAC has been in existence since 1919. (93 years ago.)
long time
since 1992
October 1920
they have been here forever
88 years
The saxophone was patented in 1846.
1909
1950
1956