Kerei is a Kazakh tribe that originated in the Altay region and fled into modern-day Kazakhstan in the early 13th century after being defeated by Genghis Khan.[1] Web site: Kazakh - Tribes Inspiring Workplaces . 2020-10-09 . 2021-05-16 . https://web.archive.org/web/20210516064944/https://www.tribes.world/kazakh . dead .