TIL that 71 years before Rosa Parks, Ida B. Wells refused to give up her seat on the bus and was thrown off by a group of white men. She later cofounded the NAACP but was kept off the list of founders by W. E. B. Du Bois.
TIL the British army created a special force of 'Facebook warriors', skilled in psychological warfare and use of social media to engage in unconventional warfare in the information age.