students were National Merit Scholars. Academic divisions Purdue offers both undergraduate and graduate programs in over 211 major areas of study, and is well known for its competitive engineering curricula. The university has also been integral in America's history of aviation, having established the first college credit offered in flight training; the first four-year bachelor's degree in aviation; and the first university airport: Purdue University Airport. Purdue's aviation technology and aeronautical engineering programs remain among the most competitive aviation-specific programs in the world. In the mid-20th century, Purdue's aviation program expanded to encompass advanced spaceflight technology, giving rise to Purdue's nicknames Cradle of Astronauts and Mother of Astronauts. 26 Purdue graduates have become astronauts, including Gus Grissom, one of the original Mercury Seven astronauts; Neil Armstrong, who was the first person to walk on the moon; and Eugene Cernan, who was the last person to walk on the moon. The English department at Purdue launched the first Online Writing Lab (OWL), in 1994. Many colleges and universities use the Purdue OWL website as an academic writing reference source for proper word usage, punctuation, grammar, and style. Purdue is organized into 10 colleges and schools. On July 1, 2010, the College of Health and Human Sciences was formed, through combining existing academic units, including the School of Nursing, the School of Health Sciences, the College of Consumer and Family Sciences, and non-humanities majors psychology and hearing and speech pathology from the College of Liberal Arts. College of Agriculture The university's College of Agriculture supports the university's agricultural, food, life, and natural resource science programs. The college also supports the university's charge as a land-grant university to support agriculture throughout the state; its agricultural extension program plays a key role in this. College of Education The College of Education offers undergraduate degrees in elementary education, social studies education, science education and special education, and graduate degrees in these and many other specialty areas of education. It has two departments: (a) Curriculum and Instruction and (b) Educational Studies. College of Engineering The Purdue University College of Engineering was established in 1874 with programs in Civil and Mechanical Engineering. The college now offers BS, MS, and PhD degrees in more than a dozen disciplines. Purdue's engineering program has also educated 24 of America's astronauts, including Neil Armstrong and Eugene Cernan who were the first and last astronauts to have walked on the Moon, respectively,