A tragic coal mine fire in Bureau County 107 years ago was the impetus behind Illinois becoming a national leader on workers’ compensation and workplace safety laws.

In 1909, the Cherry Mine in Bureau County employed more than 500 men and produced 1,500 tons of coal daily to fuel locomotives for the Chicago, Milwaukee and St. Paul Railroad. Immigrant mining families flocked to Cherry for steady employment in what was considered one of the safest mines in the country at the time.

On Nov. 13 that year, a kerosene torch dripped hot oil on a cart of hay for the mules that worked inside the mine. The hay smoldered unnoticed and a blaze eventually erupted, blocking the escape of many of the miners working that day. When all was said and done, 259 of them perished from burns and asphyxiation, leaving behind 500 fatherless children and 160 widows.

Researchers at the University of Illinois at Urbana-Champaign have developed a flexible patch that monitors if you need to rehydrate.

The new device is placed on your forearm or lower back. It absorbs sweat and tests for glucose, lactate, chloride and pH levels to determine if you are overworking your body. Circles in the patch will change colors as they test your sweat. A smartphone app analyzes the color of the circles and determines the contents of your sweat.

The patches are designed for a single use and can monitor sweat for up to six hours.

Although the design is still a few years away from completion, it could be used to warn athletes or military personnel when they are nearing overexertion before it’s too late.

An Illinois-based startup company is hoping to be the next big thing on the web for people looking to shop online. The website, Maven, pays people a commission to recommend certain products that they have to other people.

Being described as “Pinterest with Pay”, the website has partnered with 3,000 merchants and 1,000 “mavens” to recommend goods from fashion to home décor. Mavens can earn a commission of up to 20 percent for recommending goods to people on the web.

Maven CEO Jess Waldeck’s own favorite Mavens are Cheryl Leahy for her suggestions for tassel earrings, and Alison Pittas for her suggestions on food and books.

For more information about Maven visit their website.

Chicago’s very own Heritage General Store brings a gentle touch to the city with its unique seven-day full service. No other shop in town supplies visitors with freshly brewed coffee and building and repairing bikes. The store’s mission is to build eco-friendly transportation with local manufacturing. Heritage is a blend of good coffee and conversation with the lasting experience of handcrafting one’s own personal bike.

Champaign is among the fastest-growing cities in the country, according to the U.S. Census Bureau.

Between July 1, 2014, and July 1, 2015, Champaign saw a 1.5 percent population bump, similar to three of the country's 15 largest cities (Dallas, Columbus and Jacksonville). Champaign grew from 84,805 to 86,906 during that time, according to new estimates.

That makes it the 380th-largest city nationwide and No. 10 in Illinois, just behind Elgin.

Read more at the Champaign News-Gazette.