Today is Saturday, April 21, the 112th day of 2012. There are 254 days left in the year.

753 B.C. ― Traditional date of the foundation of Rome

1785 ― Russian tsarina Catharina II ends noble privileges

1828 ― Noah Webster publishes first American dictionary

1913 ― Gideon Sundback of Sweden patents the zipper

1948 ― First Polaroid camera is sold in U.S.

1956 ― Elvis Presley's first hit record, ``Heartbreak Hotel," becomes No. 1

1963 ― Beatles meet Rolling Stones for first time

1989 ― Thousands of Chinese crowd into Beijing's Tiananmen Square cheering students demanding greater political freedom

1993 ― Brazil votes against a monarchy

1995 ― FBI arrests Timothy McVeigh and charge him with Oklahoma City bombing