On August 12, 1833, the Town of Chicago had roughly 200 inhabitants. Four years later, in 1837, it was upgraded to The City of Chicago – an interesting fact given that there are still 19 incorporated towns in Illinois. The Great Chicago Fire of 1871 killed 300 people, destroyed about 3.3 square miles (9 km2), and left more than 100,000 residents homeless. However, by that time Chicago had become the world’s fastest-growing city and its population had risen over 300,000 inhabitants. The fire meant these ambitious citizens had to start again.
With admirable strength, the city was reborn from the ashes and some of Chicago’s best architecture was constructed immediately after. Structures like the Rookery Building (1888, Frank Lloyd Wright), the Auditorium Building (1889, Louis Sullivan) and the Monadnock Building (1893, Burnham & Root, Holabird & Roche) are a few examples of the high standards the city was aiming for.