Chicago Pizza and Oven Grinder Company Chicago Pizza and Oven Grinder Company Chicago Pizza and Oven Grinder Company is a restaurant located in Chicago, Illinois. The restaurant was founded in 1972, and specializes in a signature dish called the "pizza pot pie." It enjoys local popularity and has appeared in many publications and television shows. There is no knowledge of when the building was first built. It has been speculated that the building had some ties to gentility, but those ties were severed in 1929. The parking garage across the street became known as the location of the "St. Valentine's Day Massacre", the infamous murder of
Massacre Day Massacre Day Massacre Day was a holiday in Boston, Massachusetts, from 1771 to 1783. It was held on March 5, the anniversary of the 1770 Boston Massacre. Each year a featured speaker would deliver an oration to commemorate the massacre. The speech would subsequently be printed. James Lovell delivered the first speech in 1771. Dr. Joseph Warren delivered the Massacre Day oration in 1772 and 1775. Benjamin Church was the featured speaker in 1773, followed the next year by John Hancock. In emotional language, the early speeches reminded listeners of the killings of civilians in Boston by British soldiers while