Nabi Tajima, the world's oldest person has passed away. She belongs to which country?

Nabi Tajima (117), the world's oldest Japanese supercentenarian, has passed away in Kikai, Japan on April 21, 2018. She was born on August 4, 1900, and reportedly had more than 160 descendants, including great-great-great grandchildren. She was the last living person certified to have been born in the nineteenth century. Tajima became the world's oldest person 7 months ago after the death of Violet Brown in Jamaica, also at the age of 117.