Significant Events in Chicago’s History on July 23

Tragic Explosion at Union Oil Co. Refinery in 1984

On July 23, 1984, a massive explosion at the Union Oil Co. refinery in Romeoville resulted in the death of 17 people. The tragedy was triggered by a vapor leak in a tower responsible for processing crude oil into commercial gasoline. This leak caused a devastating explosion that destroyed the top 45 feet of the tower. The resulting fire burned for more than a day, leading to millions of dollars in property damage.

Weather Extremes in Chicago

Over the years, July 23 has experienced some notable weather extremes. The highest recorded temperature was 99 degrees in 1914, while the lowest was 51 degrees in 1947. Additionally, 2011 saw a significant rainfall with 6.86 inches of precipitation.

Rail Strike of 1877

In 1877, Chicago was a central field of conflict during a nationwide rail strike that had begun in West Virginia. This dispute between industrialists and workers quickly escalated, leading to violent clashes with police, militia, and U.S. infantry. The Chicago Times highlighted the involvement of a largely immigrant group, including women referred to as “Bohemian Amazons.” These skirmishes resulted in the deaths of 30 protesters, with major violence occurring at a location known as “The Battle of the Viaduct.”

First Chicago Water Carnival in 1922

July 23, 1922, marked the first annual Chicago Water Carnival. Sponsored by the Tribune, the event drew over 75,000 spectators. The Lincoln Park Boat Club excelled in the top rowing competitions.

Opening of Chicago’s Union Station in 1925

Chicago’s Union Station officially opened in 1925. Boasting formal and casual dining areas served by the renowned Harvey Girls, the station was a benchmark in railroad innovation. Facilities included a Woman’s Waiting Room, medical and emergency services, jail cells, a morgue, and even a chapel.

Introduction of “Burke’s Law” in 1975

In 1975, the Chicago City Council adopted an ordinance proposed by Alderman Edward Burke, known as “Burke’s Law.” The policy banned nudity in massage parlors and received its nickname from a popular detective television series of that era.

Legislation on Out-of-State Race Wagering in 1981

Governor James Thompson signed a bill in 1981 permitting wagering on races outside Illinois. Arlington Park was the first to implement this legislation, simulcasting the Travelers Stakes later that summer.

Milestone for White Sox Pitcher Mark Buehrle in 2009

On July 23, 2009, Mark Buehrle made baseball history by pitching a perfect game against the Tampa Bay Rays, leading the White Sox to a 5-0 victory. This was the 18th perfect game in major league history and underscored the White Sox’s record of most no-hitters in the American League.