CHAPTER 18
popular sovereignty
![Picture](/uploads/2/5/8/7/25878735/_236108239.gif)
An idea regarding slavery that was originally developed by Lewis Cass.
free soil party
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A party formed in the North composed of Americans who distrusted Lewis Cass and Zachary Taylor.
california gold rush
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An event that drew "forty-niners" from across the country to California.
underground railroad
![Picture](/uploads/2/5/8/7/25878735/_597760695.jpg)
An underground passage used to free slaves, mostly used by famous African American Harriet Tubman.
seventh of march speech
A speech given by Daniel Webster on March 7th, 1850.
compromise of 1850
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A compromise devised by Henry Clay that had 5 bills that appealed to both the North and the South.
fugitive slave law
![Picture](/uploads/2/5/8/7/25878735/_475192038.jpg)
A law passed through Congress that tipped the balance of the Compromise of 1850.
clayton-bulwer treaty
![Picture](/uploads/2/5/8/7/25878735/_118030303.jpg)
A treaty that kept America out of war with Britain in 1850.
ostend manifesto
![Picture](/uploads/2/5/8/7/25878735/_663384760.gif)
A secret proposal made from America to Spain offering $120 million for Cuba.
opium war
![Picture](/uploads/2/5/8/7/25878735/_432259673.jpg)
A war between Britain and China over the valuable commodity opium.
treaty of wanghia
![Picture](/uploads/2/5/8/7/25878735/_655190249.jpg)
A treaty signed between America and China on July 3, 1844 made possible by Caleb Cushing's charm.
treaty of kanagawa
![Picture](/uploads/2/5/8/7/25878735/_989467904.jpg)
A treaty that American admiral Matthew C. Perry signed with Japan on March 31, 1854.
gadsden purchase
![Picture](/uploads/2/5/8/7/25878735/_283778216.jpg)
A treaty made between America and Mexico where America spent $10 million to buy land for railroads.
kansas-nebraska act
![Picture](/uploads/2/5/8/7/25878735/_298683194.jpg)
An act passed by Congress that strengthened the South and made future compromises with them more difficult.