Kevin Warsh was officially sworn in as the chairman of the United States Federal Reserve on Friday, marking a significant leadership change at the central bank. Warsh, known for his previous tenure as a Fed governor, steps into the role amid ongoing economic challenges. Meanwhile, the Bitcoin community celebrated the 16th anniversary of "Pizza Day," commemorating the first recorded purchase using Bitcoin. On May 22, 2010, Laszlo Hanyecz famously paid 10,000 BTC for two pizzas, a transaction that has since become a symbolic milestone in cryptocurrency history.