Who Invented The Iambic Pentameter?

Who Invented The Iambic Pentameter? It was Philip Sidney Who created iambic? When Shakespeare wrote in verse, he most often used a form called iambic pentameter. Iamb, or iambic foot, is a poetic unit of an unstressed syllable followed by a stressed syllable (de-DUM.) Pentameter is the Greek word for five. Did Shakespeare invent iambic?