HISTORY MOMENTS The Idaho State Historical Society reports that during this week in history: Peter Minuit landed in Manhattan on May 4, 1626, which he later bought for $24 worth of cloth and brass buttons. The initial voyage of the Colonel Wright managed to ascend Big Eddy of the Clearwater River On May 6, 1861, in order to reach a suitable site for the development of an Oregon Steam Navigation Company terminal. Seth Slater established Slaterville there to serve as the original river port for the Pierce and Oro Fino City gold mines. Slaterville was later abandoned and the terminal moved to Lewiston. Mother's Day became a public holiday on May 9, 1914. Administrative reorganization of Idaho's executive branch of government in 1919 provided for a Department of Law Enforcement. Shortly after the new department commenced to function, a Bureau of Constabulary was organized on May 8. Statutory duties assigned to the new agency included general state law enforcement. In addition to "detecting and investigating crime," the new constabulary was to "order abatement of public nuisances and to enforce such orders' by appropriate court action, to suppress riots, to prevent affrays," and to prevent "wrongs to children and dumb animals" that were inhibited by law. The 27th Amendment to the United States Constitution, prohibiting mid-term Congressional pay raises, was ratified on May 7, 1992. The May 8, 1891, Arbor Day ceremonies in Boise were highlighted by the planting of a red maple on the Capitol grounds by Benjamin Harrison, the twenty-third president of the United States.