Gibbons v. Ogden was mainly about the power of Congress to

Answer.. regulate navigation for purposes of conducting interstate commerce

Explanation:

Justice Marshall concluded that a regulation of navigation by Steamboat operators and others for purposes of conducting interstate commerce was a power reserved to and exercised by the Congress under the Commerce Clause as interstate navigation fell under the interstate commerce New York could not interfere with it and the law was there invalid

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.