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The 1673 Marquette and Jolliet expedition crossed the Great Portage between the Chicago River and the Illinois, 10 miles of flat, often waterlogged ground separating the two great water transit systems of North America, the Great Lakes and the Mississippi Valley.

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The largest city of the American Midwest, Chicago, Illinois, was founded in 1830

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Chicago was incorporated as a town is 1833

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1840 was when the first floating swing bridges

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Since Chicago was built on a swamp in Lake Michigan: 

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Since Chicago was built on a swamp in Lake Michigan: 

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During the 1850s and 1860s, engineers carried out a piecemeal raising of the level of central Chicago. Streets, sidewalks, and buildings were physically raised on jackscrews. The work was funded by private property owners and public funds.

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Largest grain port was built in 1854,Chicago had a population of 30,000 residents which were mostly European immigrants

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Great Chicago fire:
Burned from October 8th to 10th. Left an estimated 100,000 people homeless and change the way buildings were made. They developed fire protection systems within buildings. They implemented stricter codes for fire safety and building standards.

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1877 the railroad strike hit because of poorly pained workers and how dangerous it was

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In the late 1800s Chicago grew as a national retail center and produced a crop of brand-name business tycoons, including Philip Armour, George Pullman, Potter Palmer and Marshall Field

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1878: Telephone service begins in Chicago.

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the first of which, Chicago's 138-foot (42 m) tall Home Insurance Building, opened in 1885

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William LeBaron Jenney's Home Insurance Building was completed in 1885 and is considered to be the first to use steel in its structural frame instead of cast iron.

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Chicago never fulfilled its dream of becoming the largest American city, but between 1890 and 1982 it was second only to New York City.

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The first "L", the Chicago and South Side Rapid Transit Railroad, began revenue service on June 6, 1892, when a steam locomotive pulling four wooden coaches, carrying more than a couple of dozen people,

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In 1893 Chicago hosted the World’s Columbian Exposition, which drew over 20 million visitors to its “White City” of plaster Gilded Age buildings built on former bogland beside Chicago’s south lakefront

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Louis Sullivan said that the fair set the course of American architecture back by two decades, but even his finest Chicago work, the Schlesinger and Meyer (later Carson, Pirie, Scott) store, was built in 1899[9]—five years after the "White City" and ten years before Burnham's Plan.

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In 1900, Chicago successfully reversed the flow of the Chicago River so it would empty into the Mississippi River instead of Lake Michigan. This was considered a hugely difficult and innovative engineering project, and it was also recognized as the largest public earth-moving project ever completed.

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1904-1905 was when Chicago started expanding their architecture knowledge

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The term “jazz” originated in Chicago in 1914. Today, there are more than 25 theaters and 225 music venues in the city.

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Reaching 815 feet into the air, Bank of America Tower is the tallest new office building to rise in Chicago since the Two Prudential Plaza opened in 1990.

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In may 12 1930 the first planetarium was built in the Western Hemisphere

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In the half-century following the Great Fire, waves of immigrants came to Chicago to take jobs in the factories and meatpacking plants. Many poor workers and their families found help in settlement houses operated by Jane Addams and her followers. 

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In the half-century following the Great Fire, waves of immigrants came to Chicago to take jobs in the factories and meatpacking plants. Many poor workers and their families found help in settlement houses operated by Jane Addams and her followers. 

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Between 1950 and 1960 Chicago’s population shrank for the first time in its history, as factory jobs leveled off and people moved to the suburbs. Poor neighborhoods were razed and replaced with massive public housing that solved few of the problems of poverty and violence.

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Between 1950 and 1960 Chicago’s population shrank for the first time in its history, as factory jobs leveled off and people moved to the suburbs. Poor neighborhoods were razed and replaced with massive public housing that solved few of the problems of poverty and violence.

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1930 when the shedd aquarium was built

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Since 1963, a "Second Chicago School" emerged from the work of Ludwig Mies van der Rohe at the Illinois Institute of Technology in Chicago.

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The Harold Washington Library Center, home to approximately 6.5 million books, was the world’s largest municipal library when it opened in 1991.

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836-foot-tall One Bennett Park opened in 2019, it was the city’s first 800-footer in nearly a decade.

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The supertall skyscraper will contain 396 luxury condos, a 192-room five-star hotel, and impressive amenities. Vista Tower will claim the title of the city’s third tallest building and second-highest roof when it opens in late 2020.

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The waterfront skyscraper replaces the midcentury low-rise General Growth building and opens in fall 2020

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Construction on the office building—which will slot between the Wolf Point West and Wolf Point East apartment towers—started in early 2020. Salesforce Tower is expected to welcome workers in early 2023.

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Chicago has a architectural form know as neoclassical architecture it is used in skyscrapers and schools

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Many groundbreaking architects in the late 19th and early 20th centuries, used the city of Chicago as a canvas to showcase some of their best structural masterpieces.

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The Exterior Of The Carbide And Carbon Building Has Real 24-Karat Gold Embellishments

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The Sears towers are the most iconic and beloved towers in chicago

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Chicago got its name from the Algonquin language

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Trump Tower is the “tallest” building in the city.

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The same architect that designed River City also designed Marina City

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Frank Lloyd Wright designed a handful of buildings in Chicago

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The Merchandise Mart covers two city blocks and is 25 stories tall, one of the largest buildings ever to be made.

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The waves in the Aqua Tower were built to reduce wind pressure

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Willis Tower is the second tallest in the Western Hemisphere

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You can see four states from the top of Willis Tower: Illinois, Indiana, Wisconsin, and Michigan

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The infamous Route 66 begins in Chicago and stretches across the country, ending on the Santa Monica Pier in California.