View source for 20-Apr

== 20-Apr ==

'''20-Apr''' (/ˈtwɛnti eɪprɪl/), also known as '''April 20''' in the [[Gregorian calendar]], is not a medical term per se, but it is a date that has significance in the field of [[medicine]] due to various medical events, discoveries, and births or deaths of notable medical figures that have occurred on this date.

=== Etymology ===

The term "20-Apr" is derived from the [[English language|English]] words for the numbers "twenty" and the month "April". The term "April" comes from the [[Latin language|Latin]] word "Aprilis", which is believed to be derived from the Latin verb "aperire" meaning "to open", in reference to it being the season when trees and flowers begin to "open".

=== Related Terms ===

* [[Gregorian calendar]]: The calendar system used in most of the world today. It was introduced by Pope Gregory XIII in 1582.
* [[Medicine]]: The science and practice of establishing the diagnosis, prognosis, treatment, and prevention of disease.
* [[Latin language]]: A classical language belonging to the Italic branch of the Indo-European languages. Latin was originally spoken in the area around Rome, known as Latium.

=== Notable Events ===

Over the years, several significant events in the field of medicine have occurred on 20-Apr. For instance, on 20-Apr-1887, the [[Johns Hopkins Hospital]] was founded. On 20-Apr-1926, the first vaccine for [[whooping cough]] was developed.

=== Notable Figures ===

Several notable figures in the field of medicine were born or died on 20-Apr. For example, [[Wilhelm His Sr.]], a Swiss anatomist who made significant contributions to the field of anatomy, was born on 20-Apr-1831.

[[Category:Dates]]
[[Category:Medicine]]
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