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The actinide (/ ˈ æ k t ɪ n aɪ d /) or actinoid (/ ˈ æ k t ɪ n ɔɪ d /) series encompasses at least the 14 metallic chemical elements in the 5f series, with atomic numbers from 89 to 102, actinium through nobelium.
A law created "Junian Latin" status for these informally manumitted slaves, a sort of "half-way house between slavery and freedom" that, for example, did not confer the right to make a will. [140] In 2 BC, the lex Fufia Caninia limited the number of slaves that could be freed through a master's will in proportion to the size of the estate. [141]
Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions.German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."