Simplify the following text for a Grade 6 native English-speaking person.
Original: Suggested names included Newcastle F.C. , Newcastle Rangers , Newcastle City and City of Newcastle , but Newcastle United was decided upon on 9 December 1892 , to signify the unification of the two teams . The name change was accepted by the Football Association on the 22 December , but the name club was not legally constituted as Newcastle United Football Club Co. .
Simplified: Newcastle United Football Club is an English football club in Newcastle .