If it doesn't have a hole, it's a sphere. Obviously.

The first Millennium Problem I will be exploring is the Poincaré Conjecture. In the early 1900s, a mathematician by the name of Henri Poincaré stated a hypothesis regarding a field called topology. Although many agreed with him, no one could actually prove that his conjecture was true for many decades. Therefore, one of the Millennium Problems became **proving or disproving** the truth of what became known as the Poincaré Conjecture.

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