gastroesophageal reflux disease (GERD) any of various conditions resulting from gastroesophageal reflux, ranging in seriousness from mild to life-threatening; principal characteristics are heartburn and regurgitation. When there is damage to the esophageal epithelium, it is known as reflux esophagitis.
Missouri Compromise Map. (Missouri Compromise 1820 Map) An Act to authorize the people of the Missouri territory to form a constitution and state government, and for the admission of such state into the Union on an equal footing with the original states, and to prohibit slavery in certain territories.
The Missouri Compromise was a compromise of new territory should be  considered a free state or slave state. This compromise proposed  whatever was north of the 36'30' line was to be a free state and  whatever was south of this line was to be slave state.