Year 400 BC was a year of the pre-Julian Roman calendar. In the Roman Republic, it was known as the Year of the Tribunate of Esquilinus, Capitolinus, Vulso, Medullinus, Saccus and Vulscus (or, less frequently, year 354 Ab urbe condita).

Alexander the Great of Macedon created one of the largest empires of the ancient world. The 4th century BC started the first day of 400 BC and ended the last day of 301 BC. It is considered part of the Classical era, epoch, or historical period. This century marked the height of Classical Greek civilization in all of its aspects.

Common Era and Before the Common Era are alternatives to the original Anno Domini (AD) and Before Christ (BC) notations used for the same calendar era. The two notation systems are numerically equivalent: "2025 CE" and "AD 2025" each describe the current year; "400 BCE" and "400 BC" are the same year. [1][2]

What BCE and CE mean, and how they differ from BC/AD. BCE and CE stand for 'Before Common Era' and 'Common Era' respectively. The former means the same as BC and the latter is the same as AD. Thus, AD 1 and 1 CE mean the same year. These terms were first used during the 17th century.

6 天之前 · Years: c. 400 BCE - c. 300 BCE: Subject: History, Ancient history (non-classical to 500 CE) Publisher: HistoryWorld: Online Publication Date: 2012 Current online version: 2012 eISBN: 9780191735400

2013年4月26日 · CE is a recent term. It refers to Common Era and is used in place of A.D. the dates are the same i.e., 2009 AD is 2009 CE. BCE means Before Common Era. For example 400 BC is 400 BCE. [This article continues after a message from the authors] When did we start using AD and BC? Why?

Perikles (r. ca. 461–429 B.C.), the most creative and adroit statesman of the third quarter of the fifth century B.C., transformed the Akropolis into a lasting monument to Athen’s newfound political and economic power.

400 BC: The Carthaginians occupy Malta. 400 BC: The Egyptians successfully revolt against Persian rule. 400 BC: London has its origins as far back as this time. 400 BC: Jōmon period ends in Ancient Japan. Source: Wikipedia

2023年11月21日 · What years are in the 4th century? The 4th century BCE encompasses all years between 400 BCE and 301 BCE. It is one of the most eventful centuries in world history. When was the 4th century?...

By far the most impressive examples of Greek architecture of the high Classical period were the buildings constructed under Pericles for the Athenian Acropolis. The Acropolis architecture, which is in several ways a clear display of civic pride, also exhibits considerable subtlety of design in its use of the Doric and Ionic orders.