CARSON CITY — Mention the Equal Rights Amendment today and it might bring back memories of the 1970s, from huge protest marches to ”ERA Yes” buttons. But the proposed constitutional amendment, which fell three states short of the 38 needed to win ratification by a 1979 deadline that Congress later extended to 1982, is not a relic in Nevada. An effort is underway to get the amendment ratified by the Nevada Legislature in 2015.