The International History Olympiad is sponsored by Houghton Mifflin Harcourt, the worldwide leader in social studies resources and textbooks for primary and secondary school students. Houghton Mifflin Harcourt’s support helps make the Olympiad possible for the world’s top history students, who can then enjoy an unforgettable nine days of competition and camaraderie in historic Berlin, Germany in July 2018. We thank Houghton Mifflin Harcourt for their steadfast support of the International History Olympiad!