Since 1915 the colored population of Chicago has more than doubled, increasing in four years from a little over 50,000 to what is now estimated to be between 125,000 and 150,000. Most blacks lived in the area called the “Black Belt.” Already overcrowded, this so-called “Black Belt” could not possibly hold the doubled colored population. One cannot put ten gallons of water in a five-gallon pail. Whites who are afraid that blacks will move out of the “Black Belt” and into “white” neighborhoods have formed the “Property Owners' Association” to keep blacks out of white neighborhoods. They discuss ways to keep Negroes in “their part of town.” In a number of cases during the period from January 1918 to August 1919, there were bombings of colored homes and houses occupied by Negroes outside of the “Black Belt.” During this period no less than twenty bombings took place, yet only two persons have been arrested and neither of the two has been convicted. Source: The document above was published in an African-American newspaper in 1919. Its author was a leader of the NAACP, an organization devoted to protecting African American rights. In the space below, provide a complete representation of your observations from Sourcing the document. According to this document, what caused the Chicago Race Riots of 1919? Provide evidence from the document that supports these reasons.