18 years, and able to prove your ancestry to your tribe as belong part of them.
No. Not being able to prove something is NOT the same as it being true.
In science, a theory is, by definition, proven and accepted as fact.
If you were not accepted into NJHS but deserved to be accepted, you might protest the letter of denial. You would need to prove that you were deserving of acceptance and that you were denied on some basis that was unfair.
Those who could not prove their Athenian ancestry, resident aliens foreigners, women, children, slaves.
The same reason any other theory is accepted: it explains known observations and it makes predictions that are testable by experiment (and prove correct when tested).
List of previous generations (through the father), to prove one's Jewish roots, and also from which tribe of Jacob a person descended.
Yes he is, there are many videos which prove he has accepted Islam as a religion and become a Muslim
As long as the bank does not require you to prove your income before approving you.
Einstein didn't prove the theory of relativity. It is a theory, a possible explanation, it is generally accepted because it explains a lot of things but that doesn't "prove" the theory, at least not to physicists. See related questions for the country of discovery.
No it's not found in Ethiopia.But the Orthodox church in the country claims that Menelik I brought it from. from Israel.But they never let anybody see it in order to prove it.
Force landholding barrons to prove they legally owned their property.