Virtual Museum of Art | Virtual Museum of History | Virtual Public Library | Virtual Science Center | Virtual Museum of Natural History | Virtual War Museum
   You are in: Museum of History >> Hall of North and South Americans >> Joaquin Velazquez Cardenas De Leon





American’s Four United Republics: Discovery-Based Curriculum

For more information go to Historic.us

 

Appleton's Cyclopedia of American Biography, edited by James Grant Wilson, John Fiske and Stanley L. Klos. Six volumes, New York: D. Appleton and Company, 1887-1889 and 1999. Virtualology.com warns that these 19th Century biographies contain errors and bias. We rely on volunteers to edit the historic biographies on a continual basis. If you would like to edit this biography please submit a rewritten biography in text form . If acceptable, the new biography will be published above the 19th Century Appleton's Cyclopedia Biography citing the volunteer editor





Virtual American Biographies

Over 30,000 personalities with thousands of 19th Century illustrations, signatures, and exceptional life stories. Virtualology.com welcomes editing and additions to the biographies. To become this site's editor or a contributor Click Here or e-mail Virtualology here.



A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

 



Joaquin Velazquez Cardenas De Leon

VELAZQUEZ CARDENAS DE LEON, Joaquin (vay-lath'-keth), Mexican astronomer, born in Santiago Aubedocla, near Tizicapan, 21 July, 1732; died in Mexico, 6 March, 1786. He lost his father in childhood and was taken charge of by his uncle, the parish priest of Jaltocan, who educated him, and caused him to be instructed in Mexican history and mythology. He thus became familiar with several Indian languages, and with the hieroglyphic writing of the Aztecs. He was afterward placed in the Tridentine college of the city of Mexico ; but this institution was so poorly equipped with teachers, books, and instruments that he was almost self-educated in mathematics and the classics. Having met by chance with the works of Sir Isaac Newton and Francis Bacon, he became attracted by the discoveries of the one and the philosophic methods of the other. He had been graduated in law, and what he gained by his labors in this profession he spent in the purchase of instruments in England. After being appointed a professor in the university, he was sent on a mission to California, where he made a great number of astronomical observations. He was the first to notice that all the maps of that country had been for several centuries strangely in error with regard to its longitude, and made it extend several de-trees too far to the west. He built an observatory of mimosa logs at Santa Aria, with the assistance of the Abbe Chappe, a French astronomer, and predicted that the eclipse of the moon of 18 June, 1769, would be visible in California. Unaided, he made a very correct observation of the transit of Venus on 5 June, 1769. In 1774 he was charged with the execution of the topographical and geodetic survey of the valley of Mexico, and his labors, with this aim, have formed the basis of all those that have been undertaken since. After his return from California he placed before the government a project for the foundation of the School of mines. The greatest service that he rendered to his country was the establishment of this institution, of which he was director-general till his death. He wrote "Sobre el beneficio de las Minas del sur de California y demas de la N. Espana" and "Conocimientos interesantes sobre la Historia Natural de las cercanias de Mexico," manuscripts which were formerly in the library of the cathedral, and are now in the National library.

Edited Appletons Encyclopedia, Copyright © 2001 VirtualologyTM

Start your search on Joaquin Velazquez Cardenas De Leon.


 

 


 


Unauthorized Site: This site and its contents are not affiliated, connected, associated with or authorized by the individual, family, friends, or trademarked entities utilizing any part or the subject's entire name. Any official or affiliated sites that are related to this subject will be hyper linked below upon submission and Evisum, Inc. review.

Copyright© 2000 by Evisum Inc.TM. All rights reserved.
Evisum Inc.TM Privacy Policy

Search:

About Us

 

 

Image Use

Please join us in our mission to incorporate America's Four United Republics discovery-based curriculum into the classroom of every primary and secondary school in the United States of America by July 2, 2026, the nation’s 250th birthday. , the United States of America: We The People Click Here

 

Childhood & Family

Click Here

 

Historic Documents

Articles of Association

Articles of Confederation 1775

Articles of Confederation

Article the First

Coin Act

Declaration of Independence

Declaration of Independence

Emancipation Proclamation

Gettysburg Address

Monroe Doctrine

Northwest Ordinance

No Taxation Without Representation

Thanksgiving Proclamations

Mayflower Compact

Treaty of Paris 1763

Treaty of Paris 1783

Treaty of Versailles

United Nations Charter

United States In Congress Assembled

US Bill of Rights

United States Constitution

US Continental Congress

US Constitution of 1777

US Constitution of 1787

Virginia Declaration of Rights

 

Historic Events

Battle of New Orleans

Battle of Yorktown

Cabinet Room

Civil Rights Movement

Federalist Papers

Fort Duquesne

Fort Necessity

Fort Pitt

French and Indian War

Jumonville Glen

Manhattan Project

Stamp Act Congress

Underground Railroad

US Hospitality

US Presidency

Vietnam War

War of 1812

West Virginia Statehood

Woman Suffrage

World War I

World War II

 

Is it Real?



Declaration of
Independence

Digital Authentication
Click Here

 

America’s Four Republics
The More or Less United States

 
Continental Congress
U.C. Presidents

Peyton Randolph

Henry Middleton

Peyton Randolph

John Hancock

  

Continental Congress
U.S. Presidents

John Hancock

Henry Laurens

John Jay

Samuel Huntington

  

Constitution of 1777
U.S. Presidents

Samuel Huntington

Samuel Johnston
Elected but declined the office

Thomas McKean

John Hanson

Elias Boudinot

Thomas Mifflin

Richard Henry Lee

John Hancock
[
Chairman David Ramsay]

Nathaniel Gorham

Arthur St. Clair

Cyrus Griffin

  

Constitution of 1787
U.S. Presidents

George Washington 

John Adams
Federalist Party


Thomas Jefferson
Republican* Party

James Madison 
Republican* Party

James Monroe
Republican* Party

John Quincy Adams
Republican* Party
Whig Party

Andrew Jackson
Republican* Party
Democratic Party


Martin Van Buren
Democratic Party

William H. Harrison
Whig Party

John Tyler
Whig Party

James K. Polk
Democratic Party

David Atchison**
Democratic Party

Zachary Taylor
Whig Party

Millard Fillmore
Whig Party

Franklin Pierce
Democratic Party

James Buchanan
Democratic Party


Abraham Lincoln 
Republican Party

Jefferson Davis***
Democratic Party

Andrew Johnson
Republican Party

Ulysses S. Grant 
Republican Party

Rutherford B. Hayes
Republican Party

James A. Garfield
Republican Party

Chester Arthur 
Republican Party

Grover Cleveland
Democratic Party

Benjamin Harrison
Republican Party

Grover Cleveland 
Democratic Party

William McKinley
Republican Party

Theodore Roosevelt
Republican Party

William H. Taft 
Republican Party

Woodrow Wilson
Democratic Party

Warren G. Harding 
Republican Party

Calvin Coolidge
Republican Party

Herbert C. Hoover
Republican Party

Franklin D. Roosevelt
Democratic Party

Harry S. Truman
Democratic Party

Dwight D. Eisenhower
Republican Party

John F. Kennedy
Democratic Party

Lyndon B. Johnson 
Democratic Party 

Richard M. Nixon 
Republican Party

Gerald R. Ford 
Republican Party

James Earl Carter, Jr. 
Democratic Party

Ronald Wilson Reagan 
Republican Party

George H. W. Bush
Republican Party 

William Jefferson Clinton
Democratic Party

George W. Bush 
Republican Party

Barack H. Obama
Democratic Party

Please Visit

Forgotten Founders
Norwich, CT

Annapolis Continental
Congress Society


U.S. Presidency
& Hospitality

© Stan Klos

 

 

 

 


Virtual Museum of Art | Virtual Museum of History | Virtual Public Library | Virtual Science Center | Virtual Museum of Natural History | Virtual War Museum