In economics, a base period or reference period is a point in time used as a reference point for comparison with other periods. It is generally used as...

A base period price is the average price for an item in a specified time period used as a base for an index, such as 1910–14, 1957–59, 1967, 1977, or 1982...

The Edo period (江戸時代, Edo jidai), also known as the Tokugawa period (徳川時代, Tokugawa jidai), is the period between 1603 and 1868 in the history of Japan...

relative to a fixed base period. An alternative is to take the base period for each time period to be the immediately preceding time period. This can be done...

is based on a base period on a specific base day for its calculation. The base day for SSE Composite Index is December 19, 1990, and the base period is...

common Attic-based Greek dialect, known as Koine Greek, which became the lingua franca throughout the ancient world. During the Hellenistic period, Greek cultural...

A historical drama (also period drama, period piece or just period) is a dramatic work set in a past time period, usually used in the context of film...

export index is the current value of the base period exports divided by the base period value of the base period exports. Similarly, the Laspeyres import...

In historiography, periodization is the process or study of categorizing the past into discrete, quantified, and named blocks of time for the purpose...

The Vedic period, or the Vedic age (c. 1500 – c. 500 BCE), is the period in the late Bronze Age and early Iron Age of the history of India when the Vedic...