What is associated with: 1847 1922 the inventor youve reached has been disconnected?

What is associated with: 1846 drs morton jackson for this used in surgery zzzz? What is associated with: 1846 heavy snowfall traps this carnivorous party in the sierra nevada mountains? What is associated with: 1846 included this party in the sierra nevada that only 45 people survived? What is associated with: 1846 saw the height of this irish blight? What is associated with: 1847 winfield scott wins the battle of churubusco? What is associated with: 1848 the treaty of guadalupe hidalgo is signed ending this war? What is associated with: 1848s treaty of guadalupe hidalgo ending this war added over 500000 square miles to the us? What is associated with: 1849 the former elizabeth barrett?