Answer :

I assume you mean Mahatma (there were also other relevant Gandhis: Indira, Sonia)

Some important events in his life were:

-his time in Jail in South Africa, which made him sensitive to racism
-his involvement in the Boar War when he was an ambulance driver
-1920 Gandhi took leadership of the Indian Congress Party
-his non-cooperation movement starting in 1921
-Indian independence in 1947

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