Arrange the following events of Dr. B.R. Ambedkar's life in chronological order:

1) He adopted Buddhism with thousands of followers
2) He resigned from Nehru's ministry due to differences over the Hindu Code Bill
3) He became the chairman of the drafting committee of the constitution
4) He became a member of the Viceroy's executive council

4-3-2-1

Dr. B.R. Ambedkar was a prominent leader of the anti-caste movement & played a pivotal role in the struggle for justice for the Dalits.
He founded the Independent Labour Party, The Scheduled Castes Federation & envisioned the formation of the Republican Party of India.
During World War II he served as a Member of the Viceroy's Executive Council (WW-II = 1939-45)
He was the chairman of the Drafting Committee of the Constituent Assembly (the Constituent Assembly was formed in 1946, and he became President of the drafting committee in August 1947).
Post-independence, he became the Law Minister in Nehru's first cabinet on the advice of Gandhiji.
However, he resigned from his ministerial post in 1951 due to differences with the government over the Hindu Code Bill.
In 1956, he renounced Hinduism and embraced Buddhism along with thousands of his followers.
He had become frail because of diabetes. On 6th December 1956, he died in his sleep.