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John Tyler (doctor)
John Tyler (29 June 1763 – 15 October 1841) was an American ophthalmologist. He is believed to be one of the first doctors in the United States to perform cataract surgery. Early life John Tyler was born in Prince George's County, Maryland, on 29 June 1763 to Samuel and Susanna (DuVal) Tyler. Career He began his study of medicine under Dr. Smith of Georgetown, later becoming a student at St. Bartholomew's Hospital, from which he received his diploma. While in London, he studied under John Abernethy. He began practicing in Frederick, Maryland, in 1786. He was one of the first oculists in the United States, as well as one of the earliest doctors to perform cataract surgery. Couching had been performed in the United States since the 1760s, and Tyler was regionally well known for his skill at that procedure. He was a founding member of the Medical and Chirurgical Faculty of the State of Maryland, and was also a member of the masonic lodge of Frederick. He was an officer during th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophthalmology
Ophthalmology ( ) is a surgical subspecialty within medicine that deals with the diagnosis and treatment of eye disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a medical degree, a doctor specialising in ophthalmology must pursue additional postgraduate residency training specific to that field. This may include a one-year integrated internship that involves more general medical training in other fields such as internal medicine or general surgery. Following residency, additional specialty training (or fellowship) may be sought in a particular aspect of eye pathology. Ophthalmologists prescribe medications to treat eye diseases, implement laser therapy, and perform surgery when needed. Ophthalmologists provide both primary and specialty eye care - medical and surgical. Most ophthalmologists participate in academic research on eye diseases at some point in their training and many include research as part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick County, Maryland
Frederick County is located in the northern part of the U.S. state of Maryland. At the 2020 U.S. Census, the population was 271,717. The county seat is Frederick. Frederick County is included in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Like other outlying sections of the Washington metropolitan area, Frederick County has experienced a rapid population increase in recent years. It borders the southern border of Pennsylvania and the northeastern border of Virginia. The county is the location of Catoctin Mountain Park (encompassing the presidential retreat Camp David) and the U.S. Army's Fort Detrick. Etymology The namesake of Frederick County and its county seat is unknown, but it was probably either Frederick, Prince of Wales, or Frederick Calvert, 6th Baron Baltimore. History Frederick County was created in 1748 by the Province of Maryland from parts of Prince George's County and Baltimore County. In 1776, following US independence, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century American Physicians
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium File:2nd millennium montage.png, From top left, clockwise: in 1492, Christopher Columbus reaches North America, opening the European colonization of the Americas; the American Revolution, one of the late 1700s Enlightenment-inspired Atlantic Rev .... The 19th century was characterized by vast social upheaval. Slavery was abolitionism, abolished in much of Europe and the Americas. The Industrial Revolution, First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maryland State Senators
Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to its east. Baltimore is the largest city in the state, and the capital is Annapolis. Among its occasional nicknames are '' Old Line State'', the ''Free State'', and the ''Chesapeake Bay State''. It is named after Henrietta Maria, the French-born queen of England, Scotland, and Ireland, who was known then in England as Mary. Before its coastline was explored by Europeans in the 16th century, Maryland was inhabited by several groups of Native Americans – mostly by Algonquian peoples and, to a lesser degree, Iroquoian and Siouan. As one of the original Thirteen Colonies of England, Maryland was founded by George Calvert, 1st Baron Baltimore, a Catholic convert"George Calvert and Cecilius Calvert, Barons Baltimore" William Hand Browne, Nabu P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Ophthalmologists
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greyhound
The English Greyhound, or simply the Greyhound, is a breed of dog, a sighthound which has been bred for coursing, greyhound racing and hunting. Since the rise in large-scale adoption of retired racing Greyhounds, the breed has seen a resurgence in popularity as a family pet. Greyhounds are defined as a tall, muscular, smooth-coated, "S-shaped" type of sighthound with a long tail and tough feet. Greyhounds are a separate breed from other related sighthounds, such as the Italian greyhound. The Greyhound is a gentle and intelligent breed whose combination of long, powerful legs, deep chest, flexible spine, and slim build allows it to reach average race speeds exceeding . The Greyhound can reach a full speed of within , or six strides from the boxes, traveling at almost for the first of a race. Appearance Males are usually tall at the withers, and weigh on average . Females tend to be smaller, with shoulder heights ranging from and weights from , although weights ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spite House
A spite house is a building constructed or substantially modified to irritate neighbors or any party with land stakes. Because long-term occupation is not the primary purpose of these houses, they frequently sport strange and impractical structures. Spite houses may create obstructions, such as blocking out light or blocking access to neighboring buildings, or they can be flagrant symbols of defiance. Although, in the US, homeowners generally have no right to views, light, or air, neighbors can sue for a negative easement. In instances regarding a spite build, courts are far more likely to side with the neighboring parties which may have been affected by that build. For example, the Coty v. Ramsey Associates, Inc. case of 1988 ruled that the defendant's spite farm constituted a nuisance, granting the neighboring landowner a negative easement. Spite houses, as well as spite farms, are considerably rarer than spite fences. This is partially attributable to the fact that modern b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Jefferson
Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 1801 to 1809. He was previously the nation's second vice president of the United States, vice president under John Adams and the first United States Secretary of State, United States secretary of state under George Washington. The principal author of the United States Declaration of Independence, Declaration of Independence, Jefferson was a proponent of democracy, republicanism, and individual rights, motivating Thirteen Colonies, American colonists to break from the Kingdom of Great Britain and form a new nation. He produced formative documents and decisions at state, national, and international levels. During the American Revolution, Jefferson represented Virginia in the Continental Congress that adopted the Declaration of Independence. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electoral College (United States)
The United States Electoral College is the group of presidential electors required by the Constitution to form every four years for the sole purpose of appointing the president and vice president. Each state and the District of Columbia appoints electors pursuant to the methods described by its legislature, equal in number to its congressional delegation (representatives and senators). Federal office holders, including senators and representatives, cannot be electors. Of the current 538 electors, an absolute majority of 270 or more ''electoral votes'' is required to elect the president and vice president. If no candidate achieves an absolute majority there, a contingent election is held by the United States House of Representatives to elect the president, and by the United States Senate to elect the vice president. The states and the District of Columbia hold a statewide or districtwide popular vote on Election Day in November to choose electors based upon how they have ple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maryland Senate
The Maryland Senate, sometimes referred to as the Maryland State Senate, is the upper house of the General Assembly, the state legislature of the U.S. state of Maryland. Composed of 47 senators elected from an equal number of constituent single-member districts, the Senate is responsible, along with the Maryland House of Delegates, for passage of laws in Maryland, and for confirming executive appointments made by the Governor of Maryland. It evolved from the upper house of the colonial assembly created in 1650 when Maryland was a proprietary colony controlled by Cecilius Calvert. It consisted of the Governor and members of the Governor's appointed council. With slight variation, the body to meet in that form until 1776, when Maryland, now a state independent of British rule, passed a new constitution that created an electoral college to appoint members of the Senate. This electoral college was abolished in 1838 and members began to be directly elected from each county and Balt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince George's County, Maryland
) , demonym = Prince Georgian , ZIP codes = 20607–20774 , area codes = 240, 301 , founded date = April 23 , founded year = 1696 , named for = Prince George of Denmark , leader_title = Executive , leader_name = Angela D. Alsobrooks ( D) , seat wl = Upper Marlboro , largest city wl = Bowie , area_total_sq_mi = 499 , area_land_sq_mi = 483 , area_water_sq_mi = 16 , area percentage = 3.2 , census yr = 2020 , pop = 967201 , pop_est_as_of = 2021 , population_est = , density_sq_mi = 1900 , district = 4th , district2 = 5th , time zone = Eastern , web = www.princegeorgescountymd.gov Prince George's County (often shortened to PG County) is a county located in the U.S. state of Maryland bordering the eastern portion of Washington, D.C. As of the 2020 U.S. census, the population was 967,201, making it the second-most populous county in Maryland, behind Montgomery County. The 2020 census counted an increase of nearly 104,000 in the previous ten years. Its c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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