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George Washington's Teeth
American President George Washington’s teeth began to fall out before he reached the age of thirty, and he eventually lost them all. During his life, he had at least four sets of dentures made to replace them. Natural teeth In 1756, when Washington was 24 years old, a dentist pulled his first tooth. According to his diary, he paid 5 shillings (£, ) to a "Doctor Watson" for the removal. His diary also regularly mentioned troubles such as aching teeth and lost teeth. John Adams said that Washington attributed the loss of his teeth to using them to crack walnuts, but modern historians have suggested that mercury(I) chloride (calomel), which Washington was given to treat smallpox, probably contributed to the loss. On April 30, 1789, the day of his first presidential inauguration, although he had mostly dentures, he had only one remaining natural tooth, a premolar. During that same year, he began wearing full dentures. Washington's last tooth was given as a gift and keepsake to hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Between Athenaeum Portrait And United States One-dollar Bill
Comparison or comparing is the act of evaluating two or more things by determining the relevant, comparable characteristics of each thing, and then determining which characteristics of each are similar to the other, which are different, and to what degree. Where characteristics are different, the differences may then be evaluated to determine which thing is best suited for a particular purpose. The description of similarities and differences found between the two things is also called a comparison. Comparison can take many distinct forms, varying by field: To compare things, they must have characteristics that are similar enough in relevant ways to merit comparison. If two things are too different to compare in a useful way, an attempt to compare them is colloquially referred to in English as "comparing apples and oranges." Comparison is widely used in society, in science and in the arts. General usage Comparison is a natural activity, which even animals engage in when dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th Century In Medicine
18 (eighteen) is the natural number following 17 and preceding 19. In mathematics * Eighteen is a composite number, its divisors being 1, 2, 3, 6 and 9. Three of these divisors (3, 6 and 9) add up to 18, hence 18 is a semiperfect number. Eighteen is the first inverted square-prime of the form ''p''·''q''2. * In base ten, it is a Harshad number. * It is an abundant number, as the sum of its proper divisors is greater than itself (1+2+3+6+9 = 21). It is known to be a solitary number, despite not being coprime to this sum. * It is the number of one-sided pentominoes. * It is the only number where the sum of its written digits in base 10 (1+8 = 9) is equal to half of itself (18/2 = 9). * It is a Fine number. In science Chemistry * Eighteen is the atomic number of argon. * Group 18 of the periodic table is called the noble gases. * The 18-electron rule is a rule of thumb in transition metal chemistry for characterising and predicting the stability of metal comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosthodontology
Prosthodontics, also known as dental prosthetics or prosthetic dentistry, is the area of dentistry that focuses on dental prostheses. It is one of 12 dental specialties recognized by the American Dental Association (ADA), Royal College of Surgeons of England, Royal College of Surgeons of Edinburgh, Royal College of Surgeons of Ireland, Royal College of Surgeons of Glasgow, Royal College of Dentists of Canada, and Royal Australasian College of Dental Surgeons. The ADA defines it as "the dental specialty pertaining to the diagnosis, treatment planning, rehabilitation and maintenance of the oral function, comfort, appearance and health of patients with clinical conditions associated with missing or deficient teeth or oral and maxillofacial tissues using biocompatible substitutes." History Dental prostheory was pioneered by French surgeon Pierre Fauchard during the late 17th and early 18th century. Despite the limitations of the primitive surgical instruments, Fauchard discovered m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Greenwood
John Greenwood may refer to: Sportspeople * John Greenwood (cricketer, born 1851) (1851–1935), English cricketer * John Eric Greenwood (1891–1975), rugby union international who represented England * John Greenwood (footballer) (1921–1994), English footballer * Jack Greenwood (footballer) (born 1943), Australian footballer of the 1960s * John Greenwood (racing driver) (1945–2015), American driver and co-founder of Greenwood Corvettes Others * John Greenwood (divine) (1556–1593), Puritan divine * John Greenwood (educator) (died 1609), English schoolmaster * John Greenwood (artist) (1727–1792), colonial American artist * John Greenwood (dentist) (1760–1819), George Washington's dentist and the "father of modern dentistry" * John Greenwood (bus operator) (1788–1851), transport entrepreneur from Salford * John Greenwood (lawyer) (1800–1871), English lawyer and cricketer * John Greenwood (cartographer) (fl. 1821–1840), and his brother Christopher, cartographer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore
Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was designated an independent city by the Constitution of Maryland in 1851, and today is the most populous independent city in the United States. As of 2021, the population of the Baltimore metropolitan area was estimated to be 2,838,327, making it the 20th largest metropolitan area in the country. Baltimore is located about north northeast of Washington, D.C., making it a principal city in the Washington–Baltimore combined statistical area (CSA), the third-largest CSA in the nation, with a 2021 estimated population of 9,946,526. Prior to European colonization, the Baltimore region was used as hunting grounds by the Susquehannock Native Americans, who were primarily settled further northwest than where the city was later built. Colonist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Dentistry
The Dr. Samuel D. Harris National Museum of Dentistry – located in Baltimore, Maryland, and opened in 1996 – preserves and exhibits the history of dentistry in United States and throughout the world. Situated on the campus of the University of Maryland, Baltimore, home of the nation's first dental school, The Baltimore College of Dental Surgery, it exhibits numerous artifacts concerning dentistry throughout the ages as well as exhibits on oral health and dentistry professionals. Highlights of the collection include George Washington's dentures, Queen Victoria's dental instruments, and the world's only tooth jukebox. The museum has also been honored by receiving congressional designation as the nation's official dental museum (2003) and is an affiliate of the Smithsonian Institution The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairfax County
Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. It is part of Northern Virginia and borders both the city of Alexandria and Arlington County and forms part of the suburban ring of Washington, D.C. The county is predominantly suburban in character with some urban and rural pockets. As of the 2020 census, the population was 1,150,309, making it Virginia's most populous jurisdiction, with around 13% of the Commonwealth's population. The county is also the most populous jurisdiction in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, with around 20% of the MSA population, as well as the larger Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area, with around 13% of the CSA population. The county seat is Fairfax, although because it is an independent city under Virginia law, the city of Fairfax is not part of Fairfax County. Fairfax was the first U.S. county to reach a six-figure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Vernon Ladies' Association
The Mount Vernon Ladies' Association (MVLA) is a non-profit organization that preserves and maintains the Mount Vernon estate originally owned by the family of President George Washington. The association was founded in 1853 by Ann Pamela Cunningham of South Carolina, and is the oldest national historic preservation organization – as well as the oldest patriotic women's society – in the United States. Cunningham appointed 30 vice regents nationwide – one woman per state – who together raised $200,000 to purchase the property (equivalent to $4.1 million in 2003 dollars). The MVLA took over operation of the Mount Vernon estate on February 22, 1860, and opened the site as a museum. Through historic preservation of a national symbol, the Mount Vernon Ladies' Association hoped to transcend or "heal" the sectional divisions that were deepening over the issue of slavery in the United States. During the American Civil War, the MVLA's restoration efforts were put on hold, but re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Wine
Port wine (also known as vinho do Porto, , or simply port) is a Portuguese fortified wine produced in the Douro Valley of northern Portugal. It is typically a sweet red wine, often served with dessert, although it also comes in dry, semi-dry, and white varieties. Other port-style fortified wines are produced outside Portugalin Argentina, Australia, Canada, France, India, South Africa, Spain, and the United Statesbut under the European Union Protected Designation of Origin guidelines, only wines from Portugal are allowed to be labelled "port". Region and production Port is produced from grapes grown and processed in the demarcated Douro region.Porter, Darwin & Danforth Price (2000) ''Frommer's Portugal'' 16th ed., p. 402. IDG Books Worldwide, Inc. The wine produced is then fortified by the addition of a neutral grape spirit known as aguardente to stop the fermentation, leaving residual sugar in the wine, and to boost the alcohol content. The fortification spirit is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Portrait Gallery (United States)
The National Portrait Gallery is a historic art museum between 7th, 9th, F, and G Streets NW in Washington, D.C., in the United States. Founded in 1962 and opened to the public in 1968, it is part of the Smithsonian Institution. Its collections focus on images of famous Americans. The museum is housed in the historic Old Patent Office Building, as is the Smithsonian American Art Museum. History Founding of the museum The first portrait gallery in the United States was Charles Willson Peale's "American Pantheon" (also known as "Peale's Collection of Portraits of American Patriots"), established in 1796. It closed after two years. In 1859, the National Portrait Gallery in London opened, but few Americans took notice.Thompson, Bob. "Who Gets Into the National Portrait Gallery, and Why?" ''Washington Post.'' June 13, 1999. The idea of a federally owned national portrait gallery can be traced back to 1886, when Robert C. Winthrope, president of the Massachusetts Historical Society, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
