Today, West Amman is a lively, modern city. The eastern part of the city, where the majority of Amman's residents live, is predominantly the residential area of the working class and is much older than the west. While possessing few sites itself, Amman makes a comfortable base from which to explore the northwestern parts of the country. Amman is a very diverse city. Palestinian, Iraqi, Circassian, Armenian,and many other ethnic groups reside in Amman. Amman was damaged because of the events of Black September but the city was rebuilt. Amman never stops growing. The city went from 20,000 inhabitants to more than 2 million people in less than a century partly because of massive influxes of refugees from Palestine and Iraq. Most Jordanians understand English so communication shouldn't be that much of a problem but it never hurts to know a few useful phrases and come prepared with a translation book.