Peter Raymond Grant<span> and </span>Barbara Rosemary Grant<span>, a married couple, are both </span>British evolutionary biologists<span> at </span>Princeton University<span>, they each hold the position of Emeritus Professor. They are noted for their work concerning </span>Darwin's finches<span> on the </span>Galápagos Island<span> named </span>Daphne Major<span>.</span>
Wood being softer than coal is a physical property. Any chemical property has to deal with a change in somethings composition. When would is burnt, rotted, or not rusted, it is because there is some form of chemical reaction (Or lack thereof) inside of the wood. The property of being softer, however, does not come about by changing what wood is.
1919 was the year of racial violence in the United States after World War 1. African American experience in war was one of the catalyst of the violence. Demobilized black veterans did not tolerate racial discrimination anymore. The riots also resulted from competition for jobs and housing among white and black people. In many cities mobs used assaults, lynching and other to protect the white supremacy. African Americans gathered on the streets to form self-defense forces. Major episodes of ratial violence were in Chicago, Washington and Elaine, Arkansas.