1. RAILROADS
1.1. Integrated Market
1.1.1. National brands
1.1.1.1. Ivory Soap
1.1.1.2. A&P Groceries
1.1.1.3. Sears/Roebuck Mail Order Catalog
1.2. Time Zones
1.3. Modern Corporations
1.3.1. Capital ($$$) To expand
1.3.1.1. Sell Shares of Company (Stock)
2. Captains of Industry - POSITIVE
2.1. Benefitted the US Economy and Public
2.1.1. Create Jobs
2.1.2. Expand Markets
2.1.3. Raise Standard of Living
2.2. Robber Barons - NEGATIVE
2.2.1. Vanderbilt
2.2.1.1. NY Trains / (CSX)
2.2.2. JP Morgan
2.2.2.1. Banking (Chase Bank)
2.2.3. JD Rockafeller
2.2.3.1. Standard Oil / (Exxon Mobile)
2.2.4. Andrew Carnegie
2.2.4.1. Carnegie Steel / (US Steel)
2.2.5. SHADY BUSINESS METHODS
2.2.5.1. Vertical Integration
2.2.5.1.1. Armour Meets
2.2.5.2. Horizontal Integration
2.2.5.3. TRUSTS
3. Civil War
3.1. Trans-Continental Railroads
3.1.1. Steel Industry
3.2. Telegraphs
3.3. Currency
4. DGL
4.1. Demography (People)
4.1.1. Immigration
4.1.2. Cities: New York, Cleveland, Chicago, Pittsburg
4.2. Geography
4.2.1. Resources
4.2.1.1. Coal
4.2.1.2. Iron
4.2.1.3. Oil
4.3. Law/Gov
4.3.1. Patents
4.3.2. Tariffs
4.3.3. Homestead Act / Land Grants
4.3.4. Constitution: Commerce Clause