If you're the kind of person who's too poor to drive - that is the kind of person without, say, a driver's license - the state will give you another ID if you come up with your birth certificate and other proof.

NPR: Supreme Court Upholds Indiana's Voter ID Law

Republicans said the law was needed to prevent voter fraud, while Democrats said people who are poor or elderly often do not have such identification and are unable to get the certified birth certificate and other secondary proof of identification needed to get a state-provided ID in Indiana.

NPR: High Court Supports Indiana Voter ID Law

And advocates say transgender people can find it difficult to change gender on their birth certificates because many states require proof of gender treatment surgery.

BBC: Sign for a public toilet file image

In February, Thabo Mbeki, South Africa's president, opened parliament with the stones at his side, and said he was delighted to have proof that Africa gave birth to modern man.

ECONOMIST: A cave in South Africa may rewrite human history

Requests for delisting have to be made either directly to the sanctions committee or through the affected person's country of birth or residence, and the burden of proof lies with the petitioner.

ECONOMIST: UN law

Anyone who can't provide such proof as a driver's license, birth certificate or passport wouldn't be allowed to complete the purchase.

NPR: FDA: Morning-After Pill OK For Ages 15 And Up

And when we have this open call on Saturday you will have to provide proof of your age - either through a passport or birth certificate.

BBC: Last Updated: Wednesday January 11 2006 09:25 GMT

Indeed, birth certificates showing a child was born on U.S. soil are now proof of citizenship.

FORBES: Ending Birthright Citizenship Would Be Costly for Americans