Final answer:
John Lewis and over 600 activists crossed the Edmund Pettus Bridge in Selma, Alabama, on March 7, 1965, to protest for voting rights, leading to an event known as 'Bloody Sunday' where they faced violent opposition from state troopers.
Step-by-step explanation:
John Lewis and other activists crossed the Edmund Pettus Bridge, located in Selma, Alabama. This march, which took place on March 7, 1965, was an effort to demand voting rights and brought national attention to the struggles faced by African Americans in the southern United States. The demonstrators were met with violence from Alabama State Troopers in an event that became known as Bloody Sunday.
The crossing of the Edmund Pettus Bridge is a significant historical event symbolizing the fight for civil rights and the ongoing struggle for racial equality in America. John Lewis's commitment to nonviolence and civil rights continued throughout his life, and in 2020 his funeral procession crossed the same bridge, commemorating his enduring legacy.