The Hakka (Hakka: Hak-kâ; Chinese: 客家; Mandarin Pinyin: Kèjiā; Jyutping: haak3gaa1), sometimes Hakka Han, are Han Chinese who speak the Hakka language and have links to the provincial areas of Guangdong, Jiangxi, Guangxi, Sichuan, Hunan and Fujian in China.
The Chinese characters for Hakka (客家) literally means "guest families". The Hakka's ancestors were often said to have arrived from what is today's central China centuries ago. In a series of migrations, the Hakkas moved, settled in their present locations in southern China, and then often migrated overseas to various countries throughout the world. The worldwide population of Hakkas is about 80 million, though the number of Hakka-language speakers is fewer. Hakka people have had a significant influence on the course of Chinese and world history: in particular, they have been a source of many revolutionary, government, and military leaders.
Read more about Hakka: Origins, Migrations and Group Identification, Social and Cultural Influences, Religion, Hakka in Hong Kong, Hakka Worldwide, World Hakka Congress, Prominent Hakka