"Cracking the Toughest Mathematical Conundrums: 7 Solved Problems"
Originally Published 2 years ago — by Interesting Engineering

Some of the hardest math problems in history have been solved, including the Poincaré conjecture, which asserts that a closed 3-manifold is topologically homeomorphic to a 3-dimensional sphere. These problems have challenged mathematicians for centuries, but advancements in topology and other mathematical fields have led to their solutions.