To place the events in chronological order:
1. Slavery abolished
2. NAACP founded
3. School segregation banned
4. U.S. military desegregated
5. Baseball color barrier broken
6. Segregation on buses outlawed
By following this order, you will go from the earliest event, which is the abolition of slavery, to the most recent event, which is the outlawing of segregation on buses. This timeline represents significant milestones in the fight against racial discrimination and segregation in the United States.