Question: When was the former science teacher at Mount Vernon Middle School born for whom the Mount Vernon district received national attention?

Context paragraphs:
Mount Vernon High School (New York): Mount Vernon High School (MVHS) is a public high school in the Chester Heights section of the City of Mount Vernon in Westchester County, New York, United States.  It is part of the Mount Vernon City School District.

Mount Vernon Commercial Historic District: The Mount Vernon Commercial Historic District is a nationally recognized historic district located in Mount Vernon, Iowa, United States.  It was listed on the National Register of Historic Places in 1993.  At the time of its nomination it consisted of 18 resources, which included 16 contributing buildings and two non-contributing buildings.  This linear historic district is a block and a half in the middle of the central business district.  It folows the ridgeline of the paha that defines the town.  The buildings were constructed between 1860 and the 1930s, with most of them in place by the turn of the 20th century.  Eight of them were built in the 1890s.  The district is also unified in appearance with two-story pressed brick facades, ornate metal cornices, heavy pedimented window hoods, and roughly dressed limestone trim dominate.  The decorative elements recall Mount Vernon's railroad-related prosperity, as they were brought in by train.

Mount Vernon–Enola High School: Mount Vernon–Enola High School (MVE) is a comprehensive six-year public high school in Mount Vernon, Arkansas, United States.  It is one of six public high schools located in Faulkner County and is the sole high school administered by Mount Vernon–Enola School District serving grades 7 through 12.

Mount Vernon City School District: Mount Vernon City School District is a public school district serving students Mount Vernon in Knox County, Ohio.  It oversees Mount Vernon High School, Mount Vernon Middle School, Columbia Elementary, Dan Emmett Elementary, East Elementary, Pleasant Street Elementary, Twin Oak Elementary, and Wiggin Street Elementary.  The district received national attention when the board voted to fire John Freshwater for branding a student with a Christian cross and teaching creationism.

Mount Vernon High School (Texas): Mount Vernon High School is a public high school located in Mount Vernon, Texas (USA) and classified as a 3A school by the UIL.  It is part of the Mount Vernon Independent School District located in central Franklin County.  In 2015, the school was rated "Met Standard" by the Texas Education Agency.

Mount Vernon High School (Ohio): Mount Vernon High School is a public four-year high school located in Mount Vernon, Ohio, United States.  It is the only high school in the Mount Vernon City Schools district.  The school's mascot is the Yellow Jacket, and its official colors are orange and black.  The mascot is actually orange and black rather than yellow and black, due to copyright reasons.  It is located at 300 Martinsburg Road, near State Route 586.  Near the high school is Mount Vernon Middle School, the only one in the district.  Also nearby is Mount Vernon Nazarene University, MVNU.

John Freshwater: John Freshwater (born June 22, 1956) is a former science teacher at Mount Vernon Middle School in Mount Vernon, Ohio, who was dismissed by the Board of Education for teaching creationism in a public school.

Mount Vernon Triangle: Mount Vernon Triangle, also spelled Mt. Vernon Triangle, is a neighborhood and community improvement district in the northwest quadrant of Washington, D.C. Originally a working-class neighborhood established in the 19th century, present-day Mount Vernon Triangle experienced a decline in the mid-20th century as it transitioned from residential to commercial and industrial use.  The neighborhood has undergone significant and rapid redevelopment in the 21st century.  It now consists mostly of high-rise condominium, apartment and office buildings.  Several historic buildings in the neighborhood have been preserved and are listed on the National Register of Historic Places.  Mount Vernon Triangle is now considered a good example of urban planning and a walkable neighborhood.

Mount Vernon District, VA: Mount Vernon is a district in the southeastern sector of Fairfax County, Virginia which encompasses the area along the Potomac River, Mount Vernon, Fort Belvoir, and Gunston Hall.  It includes the CDPs of Belle Haven, New Alexandria, Huntington, Groveton, Hybla Valley, Fort Hunt, Mount Vernon, Fort Belvoir, Mason Neck, Lorton, and Newington, Virginia.  The office of the district is on 2511 Parkers Lane, Alexandria, VA 22306; Annual Town Meetings are held at Mount Vernon High School's "Little Theatre".  s of 2010 the population was 127,637.  Dan Storck is the current supervisor.

Mount Vernon Downtown Historic District: Mount Vernon Downtown Historic District is a national historic district located at Mount Vernon, Posey County, Indiana.  The district encompasses 39 contributing buildings, 2 contributing sites, 1 contributing structure, and 2 contributing objects in the central business district of Mount Vernon.  It developed between about 1850 and 1953, and includes notable examples of Italianate, Queen Anne, Romanesque Revival, and Classical Revival style architecture.  Located in the district is the separately listed Posey County Courthouse Square.  Other notable contributing resources include the McFadin Cemetery, Sherburne Park, the Armory (1922), the Alexandrian (Carnegie) Library (1905), City Hall (1893), Fogas Building (1880), Palace Soda Shop, Memorial Coliseum (1925), and the Opera House (1879).

Supporting paragraphs: Mount Vernon City School District John Freshwater
Answer: June 22, 1956