The combination of isolation from the world and limited technology helped extend the samurai period in Japan until the

1700s
1800s
1900s
Plz

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation: