Nicholas of Cusa Postulates an Infinite, Centerless Universe

Nicholas of Cusa completed 'De Docta Ignorantia' (On Learned Ignorance) on February 12, 1440, in Kues. He proposed that the universe lacks a fixed center, that Earth is not at rest and not the center of the cosmos, and that the universe is 'interminatum' (unbounded) without clear boundaries. Scholars debate whether he meant truly infinite in the modern sense. Cusa's work departed from traditional Aristotelian geocentric models and influenced later Renaissance astronomical thinking, anticipating aspects of Copernican theory by over a century.