In medicine, ablation is the same as removal of a part of biological tissue, usually by surgery. Surface ablation of the skin (dermabrasion, also called resurfacing because it induces regeneration) can be carried out by chemicals (chemoablation), by lasers (laser ablation), or by electricity (fulguration).
The struggle for supremacy in Greece that had begun eighty years earlier with the outbreak of the Peloponnesian War had finally ended in a stalemate of exhaustion that opened the way for a new powerâ the kingdom of Macedonia. The Annenberg CPB/Project provided support for entering this text.
The subsequent failure of Sparta to reduce Athens in the first decade of the war led to a brief peace (421 B.C.). But soon the Athenians intervened in the Peloponnesus (418 B.C.) and attacked neutral states in the Aegean. The folly of that aggressive policy culminated in the disastrous expedition to Sicily (415-413 B.C.), where nearly forty thousand Athenian allies perished a thousand miles from Athens.