Final answer:
On November 27, 1978, the assassination of Harvey Milk and Mayor George Moscone took place in San Francisco, leading to a silent march and later the organization of the 1979 March on Washington to honor Milk's legacy.
Step-by-step explanation:
On November 27, 1978, former supervisor Dan White assassinated Harvey Milk and Mayor George Moscone in their offices. Memorial services culminated in more than 25,000 people carrying candles in a silent march from the Castro district to city hall. The 1979 March on Washington was organized in part as a way to honor Milk's legacy.