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.
For other people named Andrew Johnson, see Andrew Johnson (disambiguation). Andrew Johnson (December 29, 1808 â July 31, 1875) was the 17th President of the United States, serving from 1865 to 1869. Johnson became president as he was vice president at the time of the assassination of Abraham Lincoln.