Kawasaki is a city in Kanagawa Prefecture, Japan, located between Tokyo and Yokohama. It is the 9th most populated city in Japan and one of the main cities forming the Greater Tokyo Area and Keihin Industrial Area.
See the following Map for the location detail - https://www.google.co.in/maps/place/Kawasaki,+Kanagawa+Prefecture,+Japan/@35.5562862,137.4012009,7z
Before the capital of Japan was established in present day Kyoto by the Heian Emperor Kanmu in 794 CE, where was the previous capital?