Hey there!
The Montgomery Bus Boycott was an event that took place in Montgomery, Alabama from December 5, 1955 to December 20, 1956. It was a civil rights movement during which African Americans protested segregation by not riding buses and was sparked by Rosa Parks' refusal to move her seat only 4 days beforehand.
Let me know if you need any further information, if you want to read more you can do so at this site, which I used as my source! https://www.history.com/topics/black-history/montgomery-bus-boycott
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a and this is for the 20 characters to actually tell you the answer
Unobtrusive research methods include non-reactive behavioral observation, the ... pre-existing archives such as statistics or records whereas <span>a </span>survey<span> is a list of questions aimed at extracting specific data from a particular group of people.</span>