Today in Washington State History From Taylor Beginnings: Taylor Post Office opens on April 16, 1904. The Mahoney Trunk Murder occurs on April 16, 1921. Fire burns more than 35 square miles on and east of the Sammamish Plateau in King County starting on April 16, 1939. Tacoma's new Cheney Stadium hosts first baseball game on April 16, 1960. Senator Henry M. Jackson conducts the first U.S. Senate hearing on the National Environmental Policy Act (NEPA) on April 16, 1969. Grand jury indicts Seattle Liberation Front (SLF) leaders on April 16, 1970, for conspiracy to riot in planning February demonstration. Billboard reading "Will the Last Person Leaving SEATTLE -- Turn Out the Lights" appears near Sea-Tac International Airport on April 16, 1971. Group Health Cooperative debates violence as a public health issue and bans weapons at all Group Health facilities on April 16, 1994. Washington State establishes recognition days in honor of Mother Joseph and Marcus Whitman on April 16, 1999. Seattle designates the 1962 Monorail as an historic landmark on April 16, 2003. Fremont Branch, The Seattle Public Library, reopens after renovations on April 16, 2005.