Today is the 224th day of 2020. There are 142 days left in the year.TODAY'S HIGHLIGHT2010: Reasearchers say two ancient animal bones from Ethiopia show signs of butchering by human ancestors, moving back the earliest evidence for the use of stone tools by about 800,000 years.�OTHER EVENTS1712: Treaty of Araru ends Swiss War, guaranteeing domination of Protestants over five Catholic cantons.