"Cryptocurrency startup Ripple donated $29 million of its own digital currency XRP to support U.S. public schools, the company announced Wednesday. The donation, which Ripple said is the largest-ever cryptocurrency gift to a single charity, fulfilled thousands of requests from public school teachers on the crowdfunding site DonorsChoose.org. The money will be used to buy classroom materials for more than 28,000 public school teachers across all 50 states, the company said in a statement."Read the full story on CNBC.