The boom of successful tycoons were ever-present. Those like: John D. Rockefeller, Andrew Carnegie, James J. Hill, JP Morgan.
Business was booming and railroads were everywhere. Skyscrapers came up out of the ground like flowers in a field. Speeding through the turn of the century, developments created opportunities, and mobilization was predominent everywhere. The automobile took over and became the center of everyones life.
War was inevitable as that mobilization hit and took place all over the world.
Life itself became more affordable and everyone realized that the simple technological things could really advance societies.