推荐回答(5个)
公元前BC(Before Christ)意思是基督之前;公元后AD(Anno Domini)意思是耶稣基督之年,乃拉丁文缩写版(anno Domini nostri Jesu Christi)。
此种说法源于1500年之前,教宗若望一世给予修士狄奥尼斯Dionysius(470–544)一项任务,即测定复活节的准确日期。
狄奥尼斯修士制作526-626年间的复活节日历表,其依据亚历山大的济利禄Cyril of Alexandria所制作的437-531年间的复活节日历表,而济利禄依据的是公元390年亚历山大的德奥斐罗 Theophilus of Alexandria 所制作的复活节日历。

扩展资料
狄奥尼斯尽管狄奥尼斯开创性的应用AD纪元,直到200年后,方才开始采用这一纪年标准体系。意大利和英国于八世纪年开始使用AD纪元法,千禧年之际几乎整个欧洲皆用此纪年法。
1422年,葡萄牙是最后一个国家应用AD纪元法。圣Saint Bede应用过公元前BC, Before Christ两次。1627年,法国耶稣会士神学家Dionysius Petavius普及“Before Christ” 用法,以标记公元后AD之前的年份。
公元是“公历纪元”的简称,是国际通行的纪年体系。以传说中耶稣基督的生年为公历元年(相当于中国西汉平帝元年)。公元常以 A.D.(拉丁文 Anno Domini 的缩写,意为“主的生年”)表示,公元前则以 B.C.(英文 Before Christ 的缩写,意为“基督以前”)表示。
“AD是"公元"的意思,全称是Anno Domini。"公元前"的英文缩写是BC,全称是Before Christ。 “公元”是公历的纪元,始行于6世纪,它原是以传说耶稣基督诞生那一年作为公元元年
公元是“公历纪元”的简称,是国际通行的纪年体系。
以传说中耶稣基督的生年为公历元年(相当于中国西汉平帝元年)。
公元前则以 B.C.(英文 Before Christ 的缩写,意为“基督以前”)表示。
公元常以 A.D.(拉丁文 Anno Domini 的缩写,意为“主的生年”)表示。
公元元年,也称公历纪年,或和基督纪年。它以相传的耶稣基督诞生年即公元元年作为历史算
起,在中国这一年正好是西汉平帝元始元年。以这一年为界,在此以前的时间称公元前多少
年,在此以后的时间称公元多少年,或直接称XX年(注意,不能写成公元后XX年)。公元1年,
属公元1世纪00年代。中国为辛酉年(鸡年),汉平帝元始元年。
什么是公务员必须和公园ad公园就是在。没有用。公务员就是说在没有。实行。
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