What does AR mean in Genealogy?

This page is about the meanings of the acronym/abbreviation/shorthand AR in the Academic & Science field in general and in the Genealogy terminology in particular.

Anno Regni (Year of Reign)

Academic & Science » Genealogy


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What does AR mean?

argon, Ar, atomic number 18(noun)
a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere

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"AR." Abbreviations.com. STANDS4 LLC, 2017. Web. 18 Nov. 2017. <http://www.abbreviations.com/term/1371522>.