2005/03/03 | 小纪[Indiction]
类别(¤〖天文〗) | 评论(0) | 阅读(37) | 发表于 15:02
A 15-year cycle used for calculating tax cycles defined by

It was introduced on Sept. 1, 312 by the Romans, and abolished in 1806 (not by the Romans).
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