July 7 has so much significance for Swahili and Swahili speakers. Besides the Saba Saba civil disobedience proposed by the opposition, the name itself is a Swahili phrase to mean the seventh day of the seventh month.
In 2021 before UNESCO members declared the day as the official Swahili day during a member states' session in Paris in November 2021, July 7 witnessed the adoption of Swahili as a language by the Tanganyika African Union (TANU) in 1954. Besides that, it's the date that in 2000, the East African Community was re-established.