Dating of coins

The table of conformity of figures


Arabian
Iran
Burma
Bangladesh
Nepal
Thailand
Laos
Japan and China
Ethiopia

Dates in letters on Russian coins of the beginning of 18 century

Dating of Arabian coins more often on Muslim system - Hijra - from date of resettlement of the founder of Moslem doctrine from Mecca to Medina which has in 622 year, July, 16. Lunar year is shorter solar, therefore for translation of year Hijra the following formula is used: Y=H*0.97+621,6, where Y - year of a Christian calendar, H - year Hijra. In Afghanistan since 1932 (and also in 1920-1928) and in Iran since 1926 on coins solar year Hijra is underlined. Year of a Christian calendar: Y=H+ 622 (+ - 1). Coins of Ottoman empire has two dates - year of the introduction on a throne of the sultan (on lunar Hijra) and year of board. For definition of year of release of a coin it is necessary to combine both figures and then to translate the received date Hijra.

Dating of Indian coins. On the Indian coins of different provinces and princedoms there are dates of a Christian calendar, lunar Hijra, Samvat (the beginning - 57 year B.C.), Saka (the beginning - 78 year of our era), Malabar (the beginning - 824 year of our era) and a Buddhist calendar (the beginning 543 year B.C.). The Buddhist system meets also on old coins of Ceylon and Thailand.

Thailand. On the Thai coins there may be years Bangkok era (the beginning - 1782 of our era), and also years of era Chula Sakarat (the beginning - 639 year of our era). Years of era Chula Sakarat meet also on coins of Burma and Kampuchea.
The modern Thai calendar was introduced in 1888. The summer reckoning is carried out on sunny years from the beginning of the Buddhist era (543 year). That is, to determine the date on the coin of Thailand you just need to subtract 543.

Dating of Chinese coins. On the Chinese coins, up to an establishment of republic in 1911, years are specified mainly on cyclic system by two hieroglyphs. In this system consecutive years are united in cycles for 60 years in everyone. Each year inside a cycle has the hieroglyphic designation. To determine year of release of a coin, it is necessary to establish the period of its release on the hieroglyphs designating era. Sometimes on the Chinese coins years of this or that era, for example, 23-rd year Guanekoi that corresponds to 1898 of our era were specified. But more often on coins era that allows to define only the period of release of a coin is designated only. With 1911 for 1949 on the Chinese coins year of republic was put down. For example: 5-th year of republic that meets to 1916.

Dating of Korean coins. The Korean coins of different times are dated years of various systems where the account is conducted since 2333 B.C.., with 1394, 1896 and 1907 of our era.

Dating of Ethiopian coins. On the Ethiopian coins the letter designation of figures is accepted, for example: 1895 on the Ethiopian system it is designated so: 1) ten, 2) eighteen); 3) hundred (the three first letters mean 1800); 4) ninety; 5} five. To find out year of release of a coin, it is necessary to the figure specified on a coin to add 7 years and 6 months (1895 on the Ethiopian system corresponds 1903).

Dating of Japanese coins. On the Japanese coins the era conterminous to the period is underlined boards of emperor and year of era. Thus, for definition of year of release of a coin by one year of the beginning of era it is necessary to add year of era.
More about dates on Japanese coins.

СЗ - 1699	АΨГ - 1703	АΨЗ - 1707	АΨАI - 1711	АΨЕI - 1715	АΨΘI- 1719
АΨ - 1700	АΨД - 1704	АΨИ - 1708	АΨВI - 1712	АΨSI - 1716	АΨК - 1720
АΨА - 1701	АΨЕ - 1705	АΨΘ- 1709	АΨГI - 1713	АΨЗI - 1717	АΨКА - 1721
АΨВ - 1702	АΨS - 1706	АΨI - 1710	АΨДI - 1714	АΨИI - 1718	АΨКВ - 1722