Question

What is a true, non-subjective, factual claim.

Answer 1

Something you can prove ... unequivocally!

http://www.google.com/search?hl=en&q=true%2C+non-subjective%2C+factual+claim&aq=f&oq=

Answer 2

Two plus two equals four.
It's raining here.
The U.S. flag has stripes and stars.
Katy graduated two years ago.