The main motivation for the third central banking system came from the Panic of 1907, which caused a renewed desire among legislators, economists, and bankers for an overhaul of the monetary system. During the last quarter of the 19th century and the beginning of the 20th century, the United States economy went through a series of financial panics. According to many economists, the previous national banking system had two main weaknesses: an inelastic currency and a lack of liquidity. In 1908, Congress enacted the Aldrich–Vreeland Act, which provided for an emergency currency and established the National Monetary Commission to study banking and currency reform. The National Monetary Commission returned with recommendations which were repeatedly rejected by Congress. A revision crafted during a secret meeting on Jekyll Island by Senator Aldrich and representatives of the nation's top finance and industrial groups later became the basis of the Federal Reserve Act. The House voted on December 22, 1913, with 298 voting yes to 60 voting no. The Senate voted 4325 on December 23, 1913. President Woodrow Wilson signed the bill later that day.