For over a year now, non-us citizens travelling into the US are requested to pre-register electronically.

This can be done on ESTA website. ESTA apparently stands for the Electronic System for Travel Authorization.
On the ESTA website it says:

International travelers who are seeking to travel to the United States under the Visa Waiver Program are now subject to enhanced security requirements. All eligible travelers who wish to travel under the Visa Waiver Program must apply for authorization

The procedure is relatively simple. But while applying for authorization I had to enter my date of birth. In doing so I was interested in finding out what was the oldest year one could enter.
esta
As you can see, according to the US Department of Homeland Security one can get pretty old and still wanting to travel into the US.
By the way according to Wikipedia the currently oldest living person is a woman of 114 years and 283 days old. (she was born in 1895).

So it will probably remain a mystery why 1883 is the max (or is it min) one can enter…

Anyhow, I completed my form and forgot to readjust my birthyear.

The registration passed without any problem.
Which makes me officially the oldest registered and approved traveller into the US.
Here is the proof:

Esta Approved

Quiz question: does anybody know my real year of birth?