Answer
Xenophon, a Greek historian and military leader, continued the work of Thucydides, who had chronicled the Peloponnesian War. Xenophon's "Hellenica" picks up where Thucydides' "History of the Peloponnesian War" left off, covering the period from 411 to 362 BC. Xenophon's work provides valuable insights into the political and military events of this time, including the Spartan-Theban War and the rise of Thebes.