Checked content

File:Darwin tree.png

Description

Charles Darwin's 1837 sketch, his first diagram of an evolutionary tree from his First Notebook on Transmutation of Species (1837) on view at the Museum of Natural History in Manhattan.

Interpretation of handwriting: "I think case must be that one generation should have as many living as now. To do this and to have as many species in same genus (as is) requires extinction . Thus between A + B the immense gap of relation. C + B the finest gradation. B+D rather greater distinction. Thus genera would be formed. Bearing relation" (next page begins) "to ancient types with several extinct forms"
Date 1837
Source http://www.english.uga.edu/nhilton/4890/darwin/DarwinTree.html
Author
Permission
( Reusing this file)
Public domain This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Public domain This work is in the public domain in the European Union and non-EU countries with a copyright term of life of the author plus 70 years or less.

Dialog-warning.svg You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II ( more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated Russians ( more information).
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
The following pages on Schools Wikipedia link to this image (list may be incomplete):

I want to learn more...

All five editions of Schools Wikipedia were compiled by SOS Children. Thanks to SOS Children, 62,000 children are enjoying a happy childhood, with a healthy, prosperous future ahead of them. Have you heard about child sponsorship? Visit our web site to find out.