Only very meager references could be found to women in dentistry previous to 1900, and not many printed records were located to show that women were generally employed in dental offices to any great extent.
Deferred Action for Childhood Arrivals (DACA) is an American immigration policy founded by the Obama administration in June 2012. DACA allows certain illegal immigrants who entered the country as minors, to receive a renewable two-year period of deferred action from deportation and eligibility for a work permit.
Orca is Latin for a kind of whale. Because wild killer whales are not a threat to humans, and the term killer has a derogatory tone, many people now refer to these whales as orcas, rather than killer whales. At least in the U.S., and even among whale researchers, killer whale still seems to be used more commonly, although I've used both terms in this article.