1925
1900
1875
CHAPTER
LESSON 18:
The Economics of
the Industrial
Revolution
LESSON 19:
Age of Big
Business
LESSON 20:
Railroads Grow as
New Industries
Emerge
LESSON 21:
Industrial Growth
CreatesMajor
Problems
LESSON 22:
Modern Pennsylvania
1875
AndrewCarnegie brings Bessemer’s
improved process for making steel to
Pennsylvania
1876
JohnWanamaker opens
the first department
store in Philadelphia
1886
Charles Hall starts
aluminum industry
and locates Alcoa
Company in
Pittsburgh
1889
More than 2,000
people are killed
in the Johnstown
Flood tragedy
1905
Milton Hershey
opens chocolate
factory
1917-1918
370,951
Pennsylvanians
serve in
WorldWar I
1929-32
Nearly 1,000,000
Pennsylvanians
lose jobs
in the Great
Depression
80
