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The International Astronomical Union changed the classification of Pluto in August of 2006. They downgraded it from a planet to a dwarf planet.
International Astronomical Union was created in 1919.
To downgrade Pluto from planet to dwarf planet :)
Pluto used to be one of the nine planets, but it was re-classified as a Dwarf Planet on August 24th 2006 by the International Astronomical Union (IAU).
The International Astronomical Union defined planet on August 24, 2006 and decided that Pluto did not fit the definition.
pluto was found as a dwarf planet by the international astronomical union on august 24th 2006
It stands for International Astronomical Union.
The International Astronomical Union
Pluto was re-classified as a Dwarf Planet on August 24th 2006 by the International Astronomical Union (IAU).
Pluto was re-classified as a Dwarf Planet on August 24th 2006 by the International Astronomical Union (IAU).
IAU stands for International Astronomical Union
Pluto used to be the ninth planet, but it was re-classified as a Dwarf Planet on August 24th 2006 by the International Astronomical Union (IAU).