Archaeology is a field of study concerned with understanding the human past through the recovery and analysis of material remains. There are various synonyms for the word archaeological, including antediluvian, olden, ancient, historic, prehistoric, and classical. Antediluvian suggests something belonging to a time before the biblical flood. Olden implies a period of time far removed in the distant past. Ancient refers to anything from a very remote period in history. Historic relates to things or events of significant importance from the past, while prehistoric refers to the time before written history. Classical, on the other hand, refers to the culture and civilization of ancient Greece or Rome.