Historical clue formulations

• From which we get "Hakuna matata" — 2022-08-19
• Source of most of the names in "The Lion King" — 2011-07-30
• Language of Kenya — 2011-04-04
• Whence the word "safari" — 2011-01-23
• Widespread language of East Africa — 2010-04-26
• "Kwanzaa" comes from it — 2009-12-18
• Language from which "safari" comes — 2007-09-05
• Official language of Kenya — 2006-05-09
• Literally, coast people — 1996-02-25