National History Day is a national academic competition focusing on history for students in grades 6-12. Each year, more than half a million students construct entries as an individual or in a group in one of five categories-Documentary, Exhibit, Paper, Performance or Website. Students then compete in a series of contests (Regional and State) to proceed to the National Contest.

The mission of National History Day is to provide students with opportunities to learn historical content and develop research, thinking and communication skills through the study of history and to provide educators with resources and training to enhance classroom teaching.

NHD started as a small contest in Cleveland in 1974. Members of the History Department at Case Western Reserve University developed the initial idea for a history contest akin to Science Fair. Students gathered on campus to devote one day to history calling it "National History Day." Over the next few years, the contest expanded throughout Ohio and into surrounding Midwestern states. By 1980, NHD had grown into a national organization and in 1992 NHD moved its headquarters from Cleveland to the Washington, D.C., area. Although the name remained the same, NHD is now a national organization with year-round programs and a week-long national contest held at the University of Maryland, College Park.

Nikola Tesla (Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, physicist, mechanical engineer, electrical engineer, and futurist. He was an important contributor to the use of commercial electricity, and is best known for developing the modern alternating current (AC) electrical supply system. His many revolutionary developments in the field of electromagnetism in the late 19th and early 20th centuries were based on the theories of electromagnetic technology discovered by Michael Faraday. Tesla's patents and theoretical work also formed the basis of wireless communication and the radio.

Born in the village of Smiljan (now part of Gospić, present day Croatia), Tesla was a subject of the Austrian Empire by birth and later became an American citizen. Because of his 1894 demonstration of short range wireless communication through radio and as the eventual victor in the "War of Currents", he was widely respected as one of the greatest electrical engineers who worked in America. He pioneered modern electrical engineering and many of his discoveries were of groundbreaking importance. In the United States during this time, Tesla's fame rivaled that of any other inventor or scientist in history or popular culture. Tesla demonstrated wireless energy transfer to power electronic devices in 1891, and aspired to intercontinental wireless transmission of industrial power in his unfinished Wardenclyffe Tower project.