Who established rule by assembly and people's courts with juries in Athens? A. Tellus B. Solon C. Leonidas D. Aristotle

Solon.

Solon didn't exactly establish rule by assembly (Ecclesia) - - it already existed. However, the assembly was controlled by the upper classes. Solon allowed all the male citizens, including those belonging to the lowest class, to be a part of the ruling assembly.

The court (Heliaia) also already existed, but Solon enabled the men from the lower classes to sit as jurors.