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Wikipedia is a free content, multilingual online encyclopedia written and maintained by a community of volunteer contributors, known as Wikipedians, through a model of open collaboration. It is the largest and most-read reference work in history. [10] Wikipedia originally developed from another encyclopedia project called Nupedia.
Encyclopedia.com allows users to access information on a subject from multiple encyclopedias and dictionary sources, and has nearly 200,000 entries and 50,000 topic summaries. It provides a collection of online encyclopedias and entries from various sources, including Oxford University Press , Columbia Encyclopedia and Gale, its parent company.
World History Encyclopedia (formerly Ancient History Encyclopedia) is a nonprofit educational company created in 2009 by Jan van der Crabben. [1] The organization publishes and maintains articles, images, videos, podcasts, and interactive educational tools related to history. All users may contribute content to the site, although submissions ...
Encyclopedia Brown is a series of books featuring the adventures of boy detective Leroy Brown, nicknamed "Encyclopedia" for his intelligence and range of knowledge. The series [1] [2] of 29 children's novels was written (one co-written) by Donald J. Sobol, with the first book published in 1963 and the last published posthumously in 2012.
In mammals, the vulva ( pl.: vulvas or vulvae) consists of the external female genitalia. The human vulva includes the mons pubis, labia majora, labia minora, clitoris, vulval vestibule, urinary meatus, vaginal opening, hymen, and Bartholin's and Skene's vestibular glands. The vulva includes the entrance to the vagina, which leads to the uterus ...
Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9] It is unclear if it is effective for treating sexual dysfunction in females. [8]
643092515. The Stanford Encyclopedia of Philosophy ( SEP) is a freely available online philosophy resource published and maintained by Stanford University, encompassing both an online encyclopedia of philosophy and peer-reviewed original publication. [1] [2] Each entry is written and maintained by an expert in the field, including professors ...
