The Equal Rights Amendment (ERA) was a proposed amendment to the United States Constitution designed to guarantee equal rights for women.The ERA was originally written by Alice Paul and Crystal Eastman. In 1923, it was introduced in the Congress for the first time.regon-Equality of rights under the law shall not be denied or abridged by the state of Oregon or by any political subdivision in this state on account of sex. Oregon Constitution, Article I, §46 (2014).