A blood blister forms when skin and small blood vessels are damaged without breaking the skin. Trapped beneath the skin surface is some blood and skin fluid. Blood blisters are commonly caused by accidents in which the skin is pinched by a tool or a heavy weight, or they may occur from constant rubbing back and forth.
1 Sunshine hours in Chicago, Illinois range between 3:42 per day in December & 10:14 for each day in July. 2  The longest day of the year is 15:02 long and the shortest day is 8:57 long.  The longest day is 6:04 longer than the shortest day.
August 2017 Dates Unannounced | Chicago, IL | Civic. Remind Me! About This Festival. Everfest's Take: Hailed as the second-longest parade in America, the annual Bud Billiken Parade in Chicago, Illinois, is a back-to-school celebration that showcases the talents of African American students.