Final answer:
Zimbabwe celebrated its first Independence Day on April 18, 1980, with Bob Marley invited to perform in recognition of his support for African liberation movements.
Step-by-step explanation:
Zimbabwe celebrated its first Independence Day on April 18, 1980, marking the country's official break from colonial British rule and the end of a protracted war of independence. Despite the internal strife that had characterized the earlier years, the joy of liberation permeated the air as Zimbabwe welcomed a new era. Jamaican reggae icon Bob Marley was invited to perform at the independence celebrations in recognition of his music's influential voice against colonialism and his support for the African liberation movement. His presence symbolized the unification of African people in their struggle for freedom and the solidarity that extended beyond the continent's geographical limits.