The origin of Leizhou's name, and which areas did Leizhou govern before? What city is equivalent to today? Thank god, help me.

Leizhou is the southernmost tip of Chinese mainland. There are many thunderstorms in this area, and even in winter, continuous thunder can often be heard. Therefore, "Leizhou" was named Leizhou in history, including Leizhou, Suixi, xuwen county and Zhanjiang (Chikan, xiashan district, Mazhang, Development Zone and Dongdao). At the end of the Qing Dynasty and the beginning of the Republic of China, the concept of Leizhou had been basically finalized. At this time, Leizhou has jurisdiction over Haikang County, Suixi County, xuwen county County and Guangzhou Bay Leased Land (now Zhanjiang City), and Leizhou Fucheng County is located in Haikang County. Leizhou in the past was equivalent to a prefecture-level city now.