originally had two classrooms; a third was built in its attic in 1881. Meanwhile, in 1873 the two-room North School opened at Third and Pine, and in 1875 the school district had purchased at 6th and Madison, where the Sixth Street School, also known as Eastern School, opened promptly in a temporary building and grew into successively larger and better-built buildings in 1877 and 1883. The latter, an "elegant wooden building" with an imposing "French mansard roof, clock tower, and tall central belfry" superseded the old Central School as well as the North School. From 1884, it was known as the Central School. Classes extended through 12th grade, and the first class graduated from 12th grade in 1886. However the school burned in 1888. The district had, in this period, started a number of other schools, including the even more imposing Denny School on Battery Street between 5th and 6th Avenues in Belltown, opened 1884. Described as "an architectural jewel... the finest schoolhouse on the West Coast," it was demolished in 1928 as part of the Denny Regrade project. When the Central School burned in 1888, its high school and first grade classes were parcelled out to the Denny School, other classes to the former downtown building of the university, with other classes going to temporary facilities, some of which also burned, in the Great Seattle Fire. A new brick Central School opened in 1889 at Seventh and Madison, and was repeatedly expanded with annexes and extensions. After Seattle High School opened in 1902, the Central School was briefly known in 1903 as the Washington School before returning to its older name. The Central School functioned as an elementary school until 1938, and then until 1949 as the Central Branch of the Edison Technical School. The building was fatally damaged by the 1949 earthquake and razed in 1953; its site is now under Interstate 5. 20th century In 1919, there were 64 grammar schools, six high schools, two parental schools (comparable to today's youth detention centers), a school for the deaf, and nine "special schools... for pupils who do not progress normally in regular classes." In the early 20th century, Seattle Public Schools were "exemplary" under the leadership (1901–1922) of superintendent Frank B. Cooper and a series of "civic-minded progressives" who served on the Seattle school board. 21st century In 2005, it was revealed that a teacher at Broadview-Thomson Elementary