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TRIVIA: Reading and Converting AH dates Easily
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<p>[QUOTE="Conder101, post: 842977, member: 66"]That will USUALLY work, but some of the countries, at various time used a SOLAR year calender that does not require subtracting the 3% before adding the 622. These are called SH dates but there is no way of knowing which system is being used from just looking at the coin.</p><p><br /></p><p>You also need to make sure you are getting the complete date. On several of the countries that use the AH date the 19th and early 20th century coins often show the date the ruler came to power and then elsewhere on the coin will be a one or two digit number the is the regal year or the year of their reign. So you might have AH 1255 year 7, or really AH 1261 (You add one less than the regal year because when he came to power in 1255 his coins said 1255 year 1. His 1256 coins say year 2 etc so the actual year is always one less than the sum of the ascension year and the regal year.</p><p><br /></p><p>There are also a few places/times that use the numerals typically seen on AH using countries use a different calender. For example I believe modern Egyptian coins still use the Arabic-Indic numerals, but the use the same Christian era and solar calender, so their dual date coins have the same date in both numeral types with no conversion needed.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 842977, member: 66"]That will USUALLY work, but some of the countries, at various time used a SOLAR year calender that does not require subtracting the 3% before adding the 622. These are called SH dates but there is no way of knowing which system is being used from just looking at the coin. You also need to make sure you are getting the complete date. On several of the countries that use the AH date the 19th and early 20th century coins often show the date the ruler came to power and then elsewhere on the coin will be a one or two digit number the is the regal year or the year of their reign. So you might have AH 1255 year 7, or really AH 1261 (You add one less than the regal year because when he came to power in 1255 his coins said 1255 year 1. His 1256 coins say year 2 etc so the actual year is always one less than the sum of the ascension year and the regal year. There are also a few places/times that use the numerals typically seen on AH using countries use a different calender. For example I believe modern Egyptian coins still use the Arabic-Indic numerals, but the use the same Christian era and solar calender, so their dual date coins have the same date in both numeral types with no conversion needed.[/QUOTE]
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