Chi-Rho

The Chi-Rho is the oldest known monogram of Jesus Christ. It is sometimes known as a “Christogram”. The chi and the rho are the first two letters of the word Christ (Christos) in the Greek language. The chi (X) = ch, and the rho (P) = r. The Greek word Christos translates the Hebrew word for Messiah, which means “anointed one”. Jesus was born to be the promised, anointed Priest and King.

You can follow this link to test your knowledge and learn more of early Christian symbols and art.

It is funny that Bill Gates, who is ethnically Jewish but doesn't practice Judaism, would release two major operating systems with "Christian" names: Windows NT (New Testament) and Windows XP (chi-rho). Does it mean anything?