With the original lost following its submission for publication, Albert Einstein reauthored his manuscript on special relativity for a World War II bond rally.

Rockwell initially pitched the "Four Freedoms" project to the US Ordnance Department, but was rejected. Rockwell's editor at the Saturday Evening Post, however, loved the idea and published the images across four consecutive issues. After they became a sensation, the Saturday Evening Post partnered with the US Department of the Treasury to send the paintings on a 16-date national tour, which raised $133M in war bonds and stamps. Meanwhile, the Office of War Information printed four million sets of the posters with "Buy War Bonds" emblazoned on them.

Within moments of Einstein's 1955 death, someone reportedly ferreted away the 76-year-old genius's brain. Decades later, a reporter's editor told them to solve the case. This 64-minute podcast episode follows the work of Steven Levy, the reporter who ultimately tracked down Einstein's brain, which had been sliced and stored in slides, goo, and a cardboard box in a scientist's office.

Within the pages are calculations, sketches and his first attempts at deriving what would be the field equations for gravity. It also documents some dead ends and the difficulties Einstein encountered as he describes part of the mathematics of what would become general relativity, describing it as "too involved."

Prior to the 1964 auction of "The Night Action" for $13,500 to New American Library, a gentleman's code persisted in the literary world: no manuscript should be shared with more than one publisher at a time. Meredith—the agent behind Norman Mailer, Carl Sagan, and Arthur C. Clarke—leveraged his deep knowledge of the talent pool to publishers, sending around manuscripts to 19 different publishers to generate a bidding war. The Beat-influenced novel eventually flopped and is now out of print.

Although working independently of one another, the two exchanged correspondence in the lead up to November 1915, when Hilbert submitted their gravitational field equations five days before Einstein presented their work. An error in Hilbert's formulation and its nonpublication until March 1916 would leave credit for general relativity to Einstein.

In 1935, Einstein suggested that quantum mechanics was incomplete due to its strange implications about entangled particles. Their challenge led to decades of experiments that eventually proved distant particles could affect each other instantly.

The 1942 Victory Book Campaign—sponsored by the American Library Association, the Red Cross, and the USO—asked the public to donate books to both train and entertain troops. The national campaign exceeded its goal, collecting more than 10.2 million books.

This silent video from the 1920s shows footage of Einstein at Davos. The famous scientist spent time there, delivering public lectures on his theory of relativity as part of the town’s university courses.

A Union soldier looted the document from the state archives in 1865 and sold it for $5. It remained in private hands for more than a century before an undercover FBI agent posing as a buyer seized it in 2003 at a Philadelphia office building.

The Man of Steel debuted in the first issue of "Action Comics." The original cover price was 10 cents. In 2024, a copy of the comic sold at auction for $6M.

Two months in World War I, the newspaper invited readers to sketch postwar borders and submit peace terms for cash prizes. The contest captured public attempts to predict a new world order and foreshadowed modern crowdsourced forecasting. It's a wild look at how uncertain Europe's future was at the time.

Although Nikola Tesla had become increasingly eccentric in his later years, the US government wanted to ensure plans for a possible secret weapon didn’t fall into enemy hands during World War II.

To help fund its WWI military activity, the US introduced Liberty Bonds—government-issued debt marketed directly to the public. Starting at $50, the campaign targeted working Americans and offered Thrift Stamps to make bond-buying more accessible. Hollywood led the charge, with stars like Charlie Chaplin and Mary Pickford boosting bond sales.

Amid the chaos of Hitler's authoritarian Europe in World War II, Polish diplomats based in Switzerland used the classic toolkit of thieves to help free thousands of Jews: they perfected the art of forgery, faking passports secretly donated by sympathetic Latin American countries. Read the incredible tale of heroism here.

Henry David Thoreau began writing the book about his time living at Walden Pond in 1846, but it went through seven iterations before being published in 1854. You can look through scans of early proofs, including some of Thoreau's handwritten corrections, through the Huntington Digital Library.

The 1951 painting is classic Rockwell: an image designed for the cover of the Saturday Evening Post featuring a humble American family engaging in a traditional value. To date, it's the highest-grossing work in Rockwell's catalog. Its buyer? "Star Wars" director George Lucas.

A 3-inch, 14-pound sphere of nuclear reactive plutonium-gallium was set to be delivered to the Pacific Theater in 1945 to become the third atomic bomb dropped over Japan. When Japan surrendered, it was returned to Los Alamos in New Mexico for experiment, where two scientists would die testing whether the core could reach criticality—where it would release intense energy—via the use of a dense reflector. Watch the story here.

Since 1951, all Oscar statuettes have been awarded with a caveat—if the recipient wants to sell their Oscar, they have to first offer it back to the Academy for the price of $1. As a result, there's now a black market for the golden knights. Some buyers are anonymous movie buffs, but some are the stars themselves.

Recognizing the mathematical complexities of generalizing special relativity with a new picture of gravity and acceleration, Albert Einstein had Grossman introduce him to tensor calculus. Years before developing the precursor to GR together, Einstein would use Grossman's lecture notes to prepare for his exams.

Wolfe pitched a story about custom-made cars to Esquire with a satirical angle. While struggling to actually put the piece together, he explained to the editor what he wanted it to be. The editor published the letter as is, removing the greeting. The seminal article became a book of essays.

During World War I, the United States government commissioned eight artists to accompany American Expeditionary Forces to Europe to sketch and document what they saw. Drawing tanks, soldiers, shattered villages, and even German prisoners of war, the artists preserved much of the war as a matter of historical record and to rally support back home.

In 1731, the poem's lone manuscript was stored in Ashburnham House, in Westminster, England. The building caught fire, and the document was damaged, but not entirely destroyed. It then had to be repaired and reordered, with help from Icelandic scholar Grímur Jónsson Thorkelín.

In 2016, a long-forgotten piece of Walt Whitman's earliest work was uncovered. First published anonymously in 1852, "Life and Adventures of Jack Engle" is a serialized story that predates "Leaves of Grass." It offers a rare look at Whitman's early writing, before he became one of the most influential poets in US history.

General relativity predicted that the gravity of all the matter in the universe would cause it to collapse, contradicting the belief at the time that the universe was constant and unchanging. Albert Einstein added the cosmological constant to his equations, which acted like anti-gravity, to "fix" his math.

Newspapers published detailed maps of the conflict in real-time. See different portrayals of the situation, ranging from propaganda maps to speculative maps about the war's outcome. The fascinating depictions reveal how maps can show us the aspirations and intentions of different players in a global conflict.

Their estate offered 300 negatives to the Library of Congress in 1948 after Orville’s death, most of which were taken by the brothers between 1897 and 1928. The collection serves as a visual timeline of their adult lives.

First published in 1988, Stephen Hawking's most famous novel has sold more than 25 million copies in 40 languages. Through non-technical terminology, Hawking discusses the nature of space and time, general relativity, quantum mechanics, gravity, black holes, and cosmology.

Orson Welles' realistic radio dramatization of a Martian invasion of Earth, called "The War of the Worlds," caused quite a stir with audiences. The broadcast resulted in panic, with some people in the area where the story took place attempting to flee. It also helped Welles secure a contract with a Hollywood studio, leading to the creation of "Citizen Kane."

The superstar paid $12.1M for the original draft of Kerouac's novel, which was written on a 120-foot typescript scroll so the text could be read without stopping. Bryan recently purchased a church in Kerouac's hometown of Lowell, Massachusetts, with plans to turn it into the Jack Kerouac Center. The scroll will likely be housed there.