In October of 1950, UN forces pushed the North Koreans as far north as?

November 1950 to January 1951 The Chinese intervene and force UN troops to retreat across the 38th parallel. September to October 1950 UN troops under MacArthur land at Inchon and move north from Pusan. This two-pronged attack drives the North Koreans out of South Korea.

the 38th parallel

Explanation:

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.  

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.