What kind of jurisdiction is the authority of a court to be the first court to hear certain cases?

the discoverers and explorers: 1. natives showed jedediah smith the way. 2. william sublette was the first cross it with a caravan. 3.joel walker and his family were the frist settlers to use it. the jumping off point: 1. founded in 1827 near where the missouri river flows into the mississippi. 2. by the 1840's, it was the most popular "jumping off" point for pioneers to stock their wagons with supplies. 3. missionaries from the church of jesus christ of latter day saints attempted to make independence their zion, or holy capital. the route west: 1. the first emigrants to oregon came by ship before the trail was established. 2. ships continued to to travel to oregon even after the overland migrations began, but they were not popular among the pioneers. 3. the fare for a sea journey to oregon was quite expensive--few pioneer families could afford it. i don't know the other three i'm sorry.

a

explanation:

with the political divide on multiple issues we are headed that way but one of the biggest issues that has texas involved is that democrats believe that only and form of officer or military member can posses a firearm and if they ever end up repealing the right to bear arms i am sure that most people in the lower southern states would choose to seceed in order to keep thier firearms and even fight for them. this is my opinion it does in no way, shape, form, or fashion represent everyone in the lower southern states nor am i implying thst only the southern states want to keep there firearms.