Put these events in the order that they occurred (not already in order): Labor Day becomes a legal holiday; Charles Darwin publishes his Origin of Species (survival of fittest theory); Alexander Graham Bell invents the first telephone; American Federation of Labor is founded in New York; The Knights of Labor, a big labor union of skilled and unskilled workers, formed in Philadelphia
1. Alexander graham bell invents the first telephone
2. Charles Darwin publishes his origin of species ( survival of fittest theory)
3. the knights of labor, a big union of skilled and unskilled worker formed in Philadelphia
4. American federation of labor is founded in NYC
5. labor day becomes a holiday