The Changing City

1
The Changing City

• Pgs. 232-234

2
The Changing City

• Even with their many problems, cities came to
  stand for all that was good in industrial
  America.
• Besides factories, stores, and tenements, cities
  had parks, theaters, schools, zoos, railroad
  stations, and tall office buildings.

3
William Jenney

• Before 1885 buildings could not be taller than
  four or five stories. The bricks on the bottom
  could not support the weight.
• In the 1880s an engineer named William Jenney
  found a way to build taller buildings.

4
Skyscrapers

• William Jenney used steel frames to hold up
  buildings the way a skeleton holds up a body.
• In 1885 he built the ten-story Home Insurance
  Company Building in Chicago.
• It was the worlds first tall, steel-frame
  building.

5
Skyscrapers
6
Flatiron Building New York 1910

• Construction of the Flatiron Building was
  completed in 1902.
• The building has 22 stories and was designed by
  Chicago architect Daniel Burnham.

7
Other Inventions

• The first electric elevator was placed in a New
  York building in 1889.
• Street cars were used to transport people into
  cities. The first street cars were pulled by
  horses.

8
Cable Cars

• Cable cars were invented by Andrew Hallidie in
  1873.
• The cars were attached to a steam powered cable
  running in a slot in the street.
• Fifteen cities installed cable cars.
• Chicago had 710 cable cars.

9
Street Cars

• Streetcars were invented in the 1880s by Frank
  Sprague.
• His streetcar ran along tracks in the street but
  was powered by electricity.

10
Cities Grow

• As more tracks were laid, people moved farther
  and farther from the center of the city.
• They could now live away from the inner city with
  its many problems.