Three-fifths
Here's the specific statement from within the Illinois Constitution (Article IV, Section 9): <em>The house to which a bill is returned shall</em><span><em> immediately enter the Governor's objections upon its journal.
If within 15 calendar days after such entry that house by a
record vote of three-fifths of the members elected passes the
bill, it shall be delivered immediately to the second house.
If within 15 calendar days after such delivery the second
house by a record vote of three-fifths of the members elected
passes the bill, it shall become law.</em></span>
Slave labor was needed, they needed people to plant those cash crops for them.
African-American citizens made up a full three-quarters of regular bus riders, causing the boycott to have a strong economic impact on the public transportation system and on the city of Montgomery as a whole.
