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Octagon houses emerged in the mid-19th century, largely influenced by Oron Squire Fowler. Advocates believed these homes offered superior air circulation, natural light, and space efficiency. The unique shape allowed for approximately 20% more interior space than traditional rectangular homes. These structures often incorporated flat roofs, central cupolas, wraparound verandas, and innovative heating and water collection systems. Despite their advantages, octagon houses never gained mainstream acceptance and saw a decline in popularity by the early 1900s. Today, well-preserved specimens like Longwood Mansion in Mississippi still showcase their distinct architectural charm.