This month in history:

February, 1991 U.S. postage is raised from 25 cents to 29 cents.

Feb. 3, 1913 The 16th Amendment to the U.S. Constitution was ratified, granting Congress the authority to collect income taxes.

Feb. 15, 1908 Inventor Cyrus McCormick was born. He invented the horse-drawn mechanical reaper.

A computer glitch triggered by unusually heavy trading volume overloaded the New York Stock Exchange's computers, causing a 546-point drop in the Dow Jones and panic on Wall Street.

Oil giant Exxon Mobil reports 2006 profits of $39.5 billion, the largest profit ever for a U.S. company. Meanwhile, the average price of a gallon of gas in mid-February is $2.24.

JetBlue faces a customer-service catastrophe as the relative newcomer to the airline industry is forced to cancel nearly 1,100 flights in six days because of a major snowstorm in the Northeast.