What effect did the use of coin money have on China?

The effect of all people in china using the same coins and writing system made is so much easier to trade because before they would have different money and the way they write so then other people trying to trade with them wouldn't understand but now it is all the same the people can understand.

Explanation:

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.