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An exact measurement is unknown.
The Raymond James Financial Company has been in existence since its founding in 1962. The Raymond James Financial Company was founded by Raymond James.
Hagrid doesn't have a wand. He uses an umbrella.
It's 15 inches long with an unknown wood and core.
I think five years.
As long as cows have been in existence, or the whole Bos primigenius species and subspecies have been in existence.
Helium is has been in existence since the beginning of the universe.
they have been in existence for 110 years since 1901.
Yes. But her name is unknown.
It is unknown. Aro was born at 1300BC. I think his older than Jane, butbhe might not be.
81 years!
long time
a long long time ago
The IUPAC has been in existence since 1919. (93 years ago.)
I hardly think the actual inventor of the number zero is known - it was a long time ago, and the exact details are unknown.
October 1920
since 1992