- Millard Fillmore (Wikipedia)
Millard Fillmore (January 7, 1800 – March 8, 1874) was the 13th president of the United States, serving from 1850 to 1853, and was the last president to have been a member of the Whig Party while in office. A former member of the U.S. House of Representatives, Fillmore was elected the 12th vice president in 1848, and succeeded to the presidency when Zachary Taylor died in July 1850. Fillmore was instrumental in passing the Compromise of 1850, which led to a brief truce in the battle over the expansion of slavery.
- Catalan number (Wikipedia)
In combinatorial mathematics, the Catalan numbers are a sequence of natural numbers that occur in various counting problems, often involving recursively defined objects. They are named after the French-Belgian mathematician Eugène Charles Catalan.