An ulcer is a lesion that develops on the skin or mucus membranes of the body. Ulcers that occur in the stomach or small intestines are known as a peptic ulcers. A peptic ulcer in the stomach is also called a gastric ulcer. Ulcers may be caused by lifestyle factors like diet and stress, or an excess amount of stomach acids. However, the majority are caused by an infection caused by the bacterium Helicobacter pylori (H. pylori).
Abraham Lincoln stayed in office from 1861-1864, and was re-elected in 1864, and began serving his second term on March 4, 1865. He was assassinated approximately 42 days after he was sworn into office, for his second term. About 4 years, and 40 days.
Since the office was established in 1789, 43 people have served as president. The first, George Washington, won a unanimous vote of the Electoral College. Grover Cleveland served two non-consecutive terms in office, and is counted as the nation's 22nd and 24th president. William Henry Harrison spent the shortest time in office, dying 31 days after taking office in 1841.