American Army Entering the City of Mexico, Filippo Constaggini, 1885

The Treaty of Guadalupe Hidalgo: Annotated

Signed February 2, 1848, the treaty compelled Mexico to cede 55 percent of its territory, bringing more than 525,000 square miles under US sovereignty.
An orangutan attacks a woman and pulls her hair in an illustration for the murder scene in Edgar Allan Poe's short story 'The Murders in the Rue Morgue,' early 1840s. A victim lies on the floor, and a witness watches through a window.

“The Murders in the Rue Morgue” by Edgar Allan Poe: Annotated

Poe's 1841 story, arguably the first detective fiction, contains many tropes now considered standard to the genre, including a brilliant, amateur detective.
A Hundred Years Peace: The Signature of the Treaty of Ghent (Belgium), 1814

The Treaty of Ghent: Annotated

The Treaty of Ghent ended the War of 1812, an oft overlooked conflict that continues to shape the politics and culture(s) of North America.
Anita Bryant is hit in the face with a pie during a press conference on October 14, 1977

Proposition 6 (The Briggs Initiative): Annotated

Proposition 6, better known as the Briggs Initiative, was the first attempt to restrict the rights of lesbian and gay Americans by popular referendum.
Richard Nixon photoshopped to be wearing a "Pardon Me! Gerald..." button.

The Pardon of President Nixon: Annotated

President Ford’s unconditional pardon of Richard Nixon created political controversy. It also tarnished Ford’s own reputation with the American public.
President Lyndon B. Johnson signs the Voting Rights Act of 1965 while Martin Luther King and others look on

The Voting Rights Act 1965: Annotated

The passing of the Voting Rights Act in August 1965 prohibited the use of Jim Crow laws and discriminatory tests to disenfranchise Black voters.
Harvey Milk at Gay Pride, San Jose 1978

Harvey Milk’s Gay Freedom Day Speech: Annotated

Five months before his assassination in 1978, Harvey Milk called on the president of the United States to defend the rights of gay and lesbian Americans.
Photograph: Chinese workers  on the Oregon and California Railroad, circa 1888.  

Source: Getty

The Chinese Exclusion Act: Annotated

The passing of the Chinese Exclusion Act in 1882 marked the first time the United States prohibited immigration based on ethnicity and national origin.
Protestors demonstrate during a rally against the transgender bathroom rights repeal at Thomas Paine Plaza February 25, 2017 in Philadelphia, Pennsylvania

Transgender Legal Battles: A Timeline

New laws regarding transgender youth are based on the assumption that the gender binary is natural.
Hyacinthus orientalis

Plant of the Month: Hyacinth

A 2021 shortage of hyacinth bulbs brings to mind the long and storied history of its botanical and economic import.