February 24 – Anniversary of The Descent of Man

Posted on February 24, 2015


When asked, “What book did Charles Darwin write?” most people who answered at all would say, “On the Origin of Species.” That was his first book about evolutionary theory, and it made the biggest splash in terms of controversy from scientists and the general public alike.

But although that first book implied that, if modern animals had evolved from simpler forms, humans, too, had evolved from "lower" animals—Darwin had been careful not to explore that concept in Origin. He let it just hang there, in the air: it was implied, not clearly stated.

Actually, Darwin had so little wanted to provoke controversy, he had sat on his unpublished evolutionary theory for 20 years! But in 1859, Origin was published, the word was out, and the firestorm of response began.

Flash forward to this date in 1871. In the 11 years since Origin, plenty of people had discussed and debated and written and published ideas about the evolution of human beings, but now Darwin weighed in on the topic with his book The Descent of Man. Finally Darwin was ready to state that humans, too, had evolved. People had common ancestors with other animals and even plants and mushrooms and protists!

(Remember, Darwin was not the first to claim that humans evolved. But his account of how evolutionary theory applied to humans was an important step in the field.)

A lot of people have made claims about the book The Descent of Man: Darwin was racist, they say, or Darwin wanted to kill off “weaker” humans in favor of the strong. Eugenics—the idea of making the human race better by making the genetic pool better, taller, smarter, stronger, more beautiful, by controlling breeding—is supposed to have gotten its start with Darwin's book.


It is clear that Darwin was a bit racist by today's standards. However, for an Englishman of his own time—a time when many argued that different races were actually different species—Darwin was notable for how minor he thought racial differences were. His book argued, with evidence, that all humans were the same species and shared common ancestors, and pointed out the similarities between all peoples. Also, Darwin was an abolitionist. He first saw slavery in Brazil, while on his famous voyage on the Beagle, and it had horrified him. He thought that “the race question” was one of the most important of his time.

Before Darwin (and unfortunately,
in some cases, even after
Darwin), some people would
have answered this plea, "No,
you're not a man and a brother."
It is also clear that Darwin seemed to think that it was inevitable that less technological people would either die off or be absorbed by what he called “civilised races.” However, he actually argued that people should NOT try to weed out the “weak” but instead should help the weak and the ill.

Darwin's work and book promoted our modern view: that all humans are the same species; that all people came from “savage” origins; that cultural differences swamp any minor physical differences among peoples.



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Robot-building pioneer Vaucanson's birthday






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February 23 – Iwo Jima Day

Posted on February 23, 2015

I sometimes avoid talking about World War II historical anniversaries, because they are so, so brutal. This one is no different.

Iwo Jima is a tiny volcanic island in the Pacific Ocean. Japanese troops had taken control of the island and used it as a base to watch for aircraft heading for Japan – and then of course to warn Japan of incoming aircraft. The U.S. wanted the island to act as a base for fighter aircraft and as an emergency-landing site. The 1945 battle to take Iwo Jima from Japanese control was exceptionally bloody. But U.S. outnumbered the Japanese and did win control of the island.

The island's highest and most strategic point was Mount Suribachi. During the battle for Iwo Jima, on this date in 1945, U.S. Marines climbed to that point and raised an American flag. Marine photographer Louis Lowery was with them and took a photo:


This photo did not become amazingly famous.

The raising of the U.S. flag bolstered the courage of the fighting forces. Men cheered for and were cheered by the sight.

A few hours later more Marines headed up with a larger flag. This flag-and-pole were heavy enough that five Marines and one Navy corpsman raised it.

Joe Rosenthal, a photographer with the Associated Press, a Marine still photographer, and a motion-picture cameraman were there to record the raising of the second, larger flag.

After the flag pole was fully erect, Rosenthal took a photo of 18 soldiers around the flag. They were smiling and waving for the camera.

Rosenthal sent his film to Guam to be developed and printed. An Associated Press photo editor saw them and picked out one of the photos – this one:



– and said, “Here's one for all time!” He immediately sent the photo to AP headquarters in New York, and soon newspapers all over were publishing the photograph.

We are used to instant digital photography and transmissions, but in 1945, it took a lot of time to send a physical roll of film to the developer, and of course to develop and print the film. The fact that this photograph was appearing in newspapers just seventeen and one-half hours after Rosenthal shot it was amazingly fast, for the time.

Back on Guam, someone asked Rosenthal if he had paused “the photograph.” Rosenthal assumed that the questioner meant the waving-smiling photo and answered, “Sure!” He did not realize that the questioner meant his six-guys-raising-the-flag photo – which was NOT staged.

Rosenthal did not realize that his 
six-guys-raising-the-flag photo would become the most reproduced photograph in history. He didn't know that it would win him a Pulitzer Prize. He didn't know that people would be confused by the two flag raisings and his answer about (he thought) another photo being staged, and he didn't know that, being confused, a Time-Life correspondent would say, “Rosenthal climbed Suribachi after the flag had already been planted. ... Like most photographers [he] could not resist reposing his characters in historic fashion.” (Of course, this incorrect report was quoted over and over again and added to confusion.) Rosenthal didn't know that people would ask him if the photo was staged over and over again – and, in some cases, accuse him of staging his famous shot over and over again – for years and for decades.

It's strange that there has been so much doubt and confusion, given the fact that there was a motion-picture cameraman recording the entire event. His footage proves that Rosenthal's famous photo was not staged.

Not only has Rosenthal's photo been reproduced by everyone, everywhere, a stamp with the image was released in 1945, and a statue of the image was crafted to serve as a memorial at the entrance to Arlington National Cemetery.


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February 22 – Anniversary of the Florida Treaty

Posted on February 22, 2015

For centuries, North America was the home of a variety of peoples, from Inuit and Tlingit in the north to Apalachee and Hopi in the south. 

But starting in the late 1400s, Europeans came, explored, and settled in North America. Explorer and conquistador Ponce de Leon led an expedition to a land he named Florida, or Festival of Flowers; he claimed the land for Spain in 1513.

Fast forward a smidge more than three centuries. On this date in 1819, Spain ceded Florida to the United States.

I saw in several sources that the U.S. purchased Florida from the Spanish crown, but actually, the U.S. did not pay for the territory. Instead, the United States agreed to pay the legal claims of American citizens against Spain. The maximum that would be paid was a goodly sum – five million dollars.

The Florida Treaty was considered a triumph of American diplomacy. Since the nation was still relatively young compared to other nations in 1819, obtaining territory through peaceful negotiation was not necessarily an easy accomplishment!

Seas and Keys

Florida is considered by many to be one of the best states in the nation. After all, it has mild winters and lots of sunshine, great beaches and state parks, Disney World and other amusement parks, and year-round camping and outdoor activities. 


I live in Southern California, and we have all of those things, too! But Florida has a few extra-extra-special features: loads of islands (the Florida Keys), and awesome diving and snorkeling (in the Caribbean Sea).


The Florida Keys are islands that are the remnants of an old coral reef. There are many islands – about 1,700 of them! – but only about 30 are inhabited.


Only 43 islands are connected by bridges. The rest – most of which are really small – have to be explored by water. The Seven Mile Bridge connects Knight's Key to Little Duck Key. It is one of the longest bridges ever built.

Key West is (you guessed it) the westernmost of the inhabited islands. Key Largo is (as you might also guess) the largest of the keys.

Those two keys get mentioned a lot, but there are a lot of Keys I had never heard of before. I love the names No Name Key and Knockemdown Key! There are also keys named after flowers (Wisteria Key), animals (Raccoon Key), state names (Ohio Key), general nouns (Boot Key) and verbs (Crawl Key) and adjectives (Ragged Keys).



As you can imagine, tourism is key to the Keys' economies. Many visitors love to scuba dive in the waters of the Caribbean Sea. Commercial and recreational fishing are also important.





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Anniversary of the announcement of a cure for tuberculosis 




























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February 21 – World Information Architecture Day

Posted on February 21, 2015


What is “information architecture”?

It is the design of shared information environments. You know, like the internet!

It's the design of social media sites. Of online communities. Of chat rooms. Of digital library systems and medical databases. Of search engines.

It's the art of how to organize and label websites so that they are are findable, and so that information on the website is searchable.

IA people try to bring the principles of design and of architecture to digital / computer stuff!


  • Here are some links if you want to learn web design.


  • This article is meant for adults, but it is comprehensive and clear about exactly what Information Architecture is and is not.


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February 20 – Happy Birthday, Ansel Adams

Posted on February 20, 2015




I bet that, at some time, somewhere, you have seen an Ansel Adams photograph.

Maybe on a poster. Or a calendar. Printed on a T-shirt or mug or greeting card.

He's THAT ubiquitous. (Which is a way of saying that his photos can be seen everywhere.)

Self-portrait of Ansel Adams
Born in San Francisco, California, on this date in 1902, Adams was lucky enough to be a part of a well educated and well-to-do family. He loved nature and explored the out-of-doors, collecting bugs, checking out sea cliffs and shipwrecks, and star watching with his dad using a small telescope.

We could say that Adams was “homeschooled” starting at age 12, since he was so restless and inattentive that he was kicked out of several private schools; his dad brought him home to learn from family members and tutors. He learned a lot about Robert Ingersoll and Ralph Waldo Emerson, who were amazing thinkers and writers.

It was at that time that Adams became interested in music, especially the piano. He studied music for 12 years and intended to become a professional musician, but he had another developing passion, as well – which was birthed at age 14 when his family went to Yosemite National Park.


He later remembered that "the splendor of Yosemite burst upon us and it was glorious... One wonder after another descended upon us... There was light everywhere... A new era began for me."

Adams's father gave him his first camera on that trip. He returned the next year with a better camera and a tripod. He began to learn darkroom technique and started working for a photo finisher, reading photography magazines, attending camera club meetings, going to photography exhibits.

He also started hiking and exploring (and of course photographing) the High Sierra, and at age 17 he joined the Sierra Club, a group dedicated to the conservation of the Sierras and other wild places. He was hired as a caretaker of the Sierra Club visitor center in Yosemite Valley, and he took over a gallery in Yosemite Valley with his work.

So, with all that hiking and photography, and all of that conserving and photography, Adams soon found his music practice pushed into the background, and photography became front-and-center.

During Adams's 20s, many photographers were trying to elevate photography to the same level of respect in the art world as painting. Some photographers experimented with effects that made their photographs look more like paintings, including hand coloring the black and white prints. 

Adams did not go that route. 

Instead, he concentrated on keeping his photos realistic, keeping them black and white, but using sharp focus, strong contrast, and the exact right amount of exposure to create beautiful prints.

Adams did experiment with color film, but he didn't like it as well because he had learned so well how to control black and white photography.



Check out more of Ansel Adams's work at his official website.



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