Who has discovered the midpoint theorem?

The midpoint theorem, which states that the line segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length, is attributed to ancient Greek mathematicians. While it is not specifically credited to a single individual, it is often associated with Euclid, who explored similar geometric principles in his work "Elements." The theorem is a fundamental result in classical geometry and has been known and utilized for centuries.