 Complete the following phrase:  Theramenes was a central figure in four major episodes of Athenian history. He appeared on the scene in 411 BC as one of the leaders of an oligarchic coup, but, as his views and those of the coups other leaders diverged, he began to oppose their dictates and took the lead in replacing the narrow oligarchy they had imposed with a more broadly based one. He served as a general for several years after this, but was not reelected to that office in 407 BC. After the 