The Perfect Nine is first work written in an indigenous African language to be longlisted:
https://www.theguardian.com/books/2021/mar/30/ngugi-wa-thiongo-nominated-author-and-translator-first-international-booker-longlist?fbclid=IwAR2BgW6VXfJZZu_J0L0m-sn-TLZMqErvxTYY4z4DvUCBAaxU4RZ7VLo6u-k
https://www.theguardian.com/books/2021/mar/30/ngugi-wa-thiongo-nominated-author-and-translator-first-international-booker-longlist?fbclid=IwAR2BgW6VXfJZZu_J0L0m-sn-TLZMqErvxTYY4z4DvUCBAaxU4RZ7VLo6u-k