What did people cash in after World War I giving them extra money? (The roaring twenties)

In preparation for its involvement in World War I, the U.S. Government raised money by selling "Liberty Bonds." 1920 - The Government's debt shrunk from $23 billion to $17 billion. The U.S. Government had more money than it needed to pay for the services it provided.

Explanation:

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration