Complex sentence: Before this event the name of the city was Umanath Nagar after the famous Umanath Temple situated here, but after the event the city first began to be called Bar, as mentioned in various maps of India from 1834 to 1896 and Barh thereafter.
Split into simpler sentences: Before this event the name of the city was Umanath Nagar after the famous Umanath Temple situated here. After the event the city began to be called Bar, as mentioned in various maps of India from 1834 to 1896 and Barh thereafter.