Spanish Biology Olympiad experiences in this field. This competition has always included both practical and theoretical examinations. In Spain the first National Biology Olympiad was organised in the Canary Islands by a group of high school teachers. By that time the Community of Madrid and the Community of Valencia had already celebrated their Regional Olympiad for four or five years. Currently, local phases are held in all the national autonomous communities, including Ceuta and Melilla, and the Spanish centres abroad. The Spanish Biology Olympiad is registered under number 585 939, Group 1, Section 1 in the National Registry of Associations of the Ministry
International History Olympiad assigned to teams for the team events at the Olympiad based on a number of factors, though every effort is made to keep students from the same country or state together. Teams consist of either 2 or 3 students. For team events, if a "mixed" team wins a medal, the medals are credited fractionally on the medals table depending on how many students from a state or country were on the team. After 2016, the Olympiad became a biennial model; Olympiads thus occur in even-numbered years. The location of the 2020 International History Olympiad has yet to be determined, though