Posted Online: Feb. 20, 2014, 12:00 am

Today in history for Thursday, Feb. 20, 2014

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Today is Thursday, Feb. 20, the 51st day of 2014. There are 314 days left in the year.
1864 -- 150 years ago: Col. B.S. Porter, commissioner of prisoners at the Rock Island Barracks, has been in Washington for several days on business.
1889 -- 125 years ago: St. Paul Lodge, Rock Island, observed the 25th anniversary of the order of Knights of Pythias.
1914 -- 100 years ago: Ms. Ruth Blakemore, Rock Island, placed third in the Big Eight high school girls declamatory contest.
1939 -- 75 years ago: A February "heat wave" with temperatures up to 56 degrees was unceremoniously chased out of the Quad-Cities last night by a rude north wind. The mercury dropped 43 degrees in 23 hours.
1964 -- 50 years ago: Jacqueline Arnold and John Robertson have been named valedictorian and salutatorian, respectively, of the 1964 graduating class at Rock Island High School. They top a list of 193 honor students.
1989 -- 25 years ago: Cody Lawver, of Moline, wanted out of his stroller. As music spilled from the stage at Davenport's RiverCenter, the 20-month-old boy wriggled with interest, ready to join the fun at the first Rock & Roll Expo. The two-day festival hosted by WXLP-FM attracted more than 5,000 people.