The Voting Rights Act of 1965 is a landmark piece of federal legislation in the United States that prohibits racial discrimination in voting. It was signed into law by President Lyndon B. Johnson during the height of the civil rights movement on August 6, 1965, and Congress later amended the Act five times to expand its protections. Designed to enforce the voting rights protected by the Fourteenth and Fifteenth Amendments to the United States Constitution, the Act sought to secure the right to vote for racial minorities throughout the country, especially in the South. According to the U.S. Department...

Shelby County v. Holder, 570 U.S. 529 (2013), is a landmark decision of the Supreme Court of the United States regarding the constitutionality of two provisions of the Voting Rights Act of 1965: Section 5, which requires certain states and local governments to obtain federal preclearance before implementing any changes to their voting laws or practices; and subsection (b) of Section 4, which contains the coverage formula that determines which jurisdictions are subject to preclearance based on their histories of racial discrimination in voting. On June 25, 2013, the Court ruled by a 5 to 4 vote...

The International Fixed Calendar (also known as the Cotsworth plan, the Cotsworth calendar, the Eastman plan or the Yearal) was a proposed reform of the Gregorian calendar designed by Moses B. Cotsworth, first presented in 1902. The International Fixed Calendar divides the year into 13 months of 28 days each. A type of perennial calendar, every date is fixed to the same weekday every year. Though it was never officially adopted at the country level, the entrepreneur George Eastman instituted its use at the Eastman Kodak Company in 1928, where it was used until 1989. While it is sometimes described...

Marie François Xavier Bichat (; French: [biʃa]; 14 November 1771 – 22 July 1802) was a French anatomist and pathologist, known as the father of modern histology. Although he worked without a microscope, Bichat distinguished 21 types of elementary tissues from which the organs of the human body are composed. He was also "the first to propose that tissue is a central element in human anatomy, and he considered organs as collections of often disparate tissues, rather than as entities in themselves". Although Bichat was "hardly known outside the French medical world" at the time of his early death...