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A Yojana (Sanskrit : योजन ) is a Vedic measure of distance that was used in ancient India. It is equivalent to about as per modern measures of distance, although the exact value is disputed among scholars (between ). In modern Hindi the word ''yojanaa'' (Hindi : योजना) means "plan" or blueprint, and is etymologically connected with the Cartesian notion of distance in the word ''yojana''. However, note that the words "yojana'" and "yojanaa" are different, and pronounced differently. The last sound of the second word is pronounced "aa" as in arm (). ==Variations on length== The length of the yojana varies depending on the different standards adopted by different Indian astronomers. In the ''Surya Siddhanta'' of the 5th century, for example, a yojana was equivalent to , and the same was true for Aryabhata's ''Aryabhatteeya'' (499). However, 14th century scholar Paramesvara defined the yojana to be about 1.5 times larger, equivalent to about .〔 A. C. Bhaktivedanta Swami Prabhupada gives the equivalent length of a yojana as 〔(Srimad Bhagavatam 10.57.18 (translation) ) "one yojana measures about eight miles"〕 throughout his translations of the Bhagavata Purana. Some other traditional Indian scholars give measurements between 13 km and 16 km (8–10 miles) or thereabouts. Alexander Cunningham, in ''The Ancient Geography of India'', takes a yojana to mean . The Thai equivalent โยชน์ (pronounced "yot") gives the distance as 16km. The word is also used to describe a large distance, the same way an English speaker would say something is "miles" away.〔:th:โยชน์〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「yojana」の詳細全文を読む スポンサード リンク
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