Answer:
1. oregan and referendum laws
'this enabled Oregon citizens to directly initiate amendments to the Oregans state constitution, as well as entact new state stautes'. This was put into effect after the oregan electorate overwhelmingly approved a legistatively referred ballot measure
2. history of standard oil company
expose of oil companies and the riches man in the world at the time John Rockfeller
3. hepburn act, pure food and drug act
the purpose was to 'protect the public against adulteration of food and from products indentified as healthful without scientific support' basicllay put truth in labeling
4. triangle fire
deadliest fire ever in new york
5. 16th and 17th amendment ratified
16th; congress the power to collect taxes on income without apportioning it among the states
17th; allows the people to vote for who they want to represent them in the Senate
Because the middle class grew substantially and urbanization started.
