What is the relationship between Xian and Changan-Annieli tours

Annieli tours’s Beijing Tour Guide answer:
Changan and Xian are the same place from a geographical point view .This word ,Changan ,had been used long long before . It is the name of a village belong to Xian Yang.Changan was used as a capital’s name from Han Dynasty. The name lasted 1,570 years. The name “Changan” was changed to “Xian” from the early period of the Ming Dynasty . From now on the name ,Xian, has been used to this day.

                                       Wrote by Annieli tours’s Beijing Tour Guide