Chicago ( or ), officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is also the most populous city in both the state of Illinois and the Midwestern United States. It is the county seat of Cook County. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10 million people and is the third-largest in the U.S. Chicago has often been called a global architecture capital. Chicago is considered one of the most important business centers in the world. 

Chicago was incorporated as a city in 1837, near a portage between the Great Lakes and the Mississippi River watershed, and grew rapidly in the mid-nineteenth century. After the Great Chicago Fire of 1871, which razed several square miles and left more than 100,000 homeless, the city made a concerted effort to rebuild on the damage. The construction boom accelerated population growth throughout the following decades, leading Chicago to become among the five largest cities in the world by 1900. During this period Chicago made noted contributions to urban planning and zoning standards, new construction styles (including the Chicago School of architecture), the development of the City Beautiful Movement, and the eventual creation of the steel-framed skyscraper.
How many people live in Chicago?
What is Chicagoland?
How many people live there?
What was early Chicago near?
What water bodies did the portage connect?
How many people had nowhere to live after the fire?
How many actual houses were ruined?
True or False: The population size never recovered from the disaster.
What movement started in Chicago?
What tall structure was invented there?
True or False: The Baroque school of architecture started there.
What School do we know started there?
Is Chicago the biggest city in the U.S.?
How many are bigger?
Which ones?
Is there a bigger city in Illinois?
What about in the Midwest?
Which county has its seat there?
What is Chicago formally called?
When did the fire happen?
over 2.7 million
With over 2.7 million residents,
The Chicago metropolitan area
The Chicago metropolitan area, often referred to as Chicagoland, 
nearly 10 million
Chicagoland, has nearly 10 million people
a portage
Chicago was incorporated as a city in 1837, near a portage between the Great Lakes and the Mississippi River watershed,
the Great Lakes and the Mississippi River watershed
the Great Lakes and the Mississippi River watershed,
over 100,000
After the Great Chicago Fire of 1871, which razed several square miles and left more than 100,000 homeless
unknown
unknown
false
The construction boom accelerated population growth throughout the following decades
the City Beautiful Movement
the development of the City Beautiful Movement, and the eventual creation of the steel-framed skyscraper.
steel-framed skyscraper
eventual creation of the steel-framed skyscrape
unknown
unknown
the Chicago School of architecture
new construction styles (including the Chicago School of architecture
no
 City of Chicago, is the third-most populous city in the United States
Two
is the third-most populous city in the United States.
unknown
unknown
no
With over 2.7 million residents, it is also the most populous city in both the state of Illinois and the Midwestern United States.
no
 it is also the most populous city in both the state of Illinois and the Midwestern United States.
Cook County.
It is the county seat of Cook County. 
the City of Chicago
officially the City of Chicago,
1871
Great Chicago Fire of 1871