Complex sentence: Records of Suruga during the Heian period are sparse, but during the Kamakura period, Suruga was under direct control of the Hōjō clan, and with the development of the Kamakura Shogunate came increased traffic on the Tōkaidō road connecting Kamakura with Kyoto.
Split into simpler sentences: Records of Suruga during the Heian period are sparse, but during the Kamakura period, Suruga was under direct control of the Hōjō clan. With the development of the Kamakura shogunate came increased traffic on the Tōkaidō road connecting Kamakura with Kyoto.