The 910-carat diamond discovered in Lesotho

World's Fifth-Largest Diamond Found in Lesotho

The 910-carat gem is a D-color, type-IIa stone, meaning it is completely colorless and has no visible impurities

Frederick II was the first "modern" ornithologist, studying birds in detail in the 13th century to fuel his passion for falconry.

The Modern History of Ornithology Starts With This Inquisitive Medieval Emperor

Frederick II got up to a lot in his lifetime

John Michael Wright's portrait of King Charles II, in the Royal Collection

How Charles II Used Art to Bolster Britain’s Struggling Monarchy

A new exhibit at the Queen’s Gallery in London features more than 200 items from the collection of the “Merry Monarch”

A cameraman at the coronation of King George V.

Why Do We Call TV Watchers ‘Viewers’?

It all goes back to a quirky BBC subcommittee working in the 1930s to change the English language

Queen Liliuokalani

Five Things To Know About Liliʻuokalani, the Last Queen of Hawaiʻi

The queen, who was deposed by a coup led by American sugar planters, died more than 100 years ago, but is by no means forgotten

A typical 17th-century coffeehouse scene. Controversial, right?

This 17th-Century "Women's Petition Against Coffee" Probably Wasn't About Women, or Coffee

It probably wasn't written by angry, sex-deprived wives–although stranger things have happened

Construction of the royal pyre in Sanam Luang for King Bhumibol Adulyadej's cremation continues in preparation for the funeral in late 2017.

An Exclusive Behind-the-Scenes Look at the Funeral Fit for a King

For the first time in more than 70 years, Thailand is saying farewell to its monarch

Peter the Great didn't wear a beard, but he did sport a groovy 'stache.

Why Peter the Great Established a Beard Tax

Between 1697-1698, the tsar visited Europe in disguise to learn about shipbuilding and Western culture. His verdict? Shave

Shakespeare wrote 'Macbeth,' which features three witches, during James I's reign, which also was the time of some of England's most famous witch trials.

England’s Witch Trials Were Lawful

It might seem like collective madness today, but the mechanisms for trying witches in England were enshrined in law

Artists view of Greenwich Palace

Part of Henry VIII's Birthplace Discovered

Workers uncovered two rooms of Greenwich Palace while building a visitors center at the Old Royal Naval College in London

King George and Canadian Prime Minister William Lyon MacKenzie King ride in President Franklin Delano Roosevelt's car as the president drives them away from church on June 11, 1939.

When Franklin Delano Roosevelt Served Hot Dogs to a King

A king had never visited a president at home before, but by all accounts they got along fine

Multi-generational fighting over borders between the Calvert family that founded the colony of Maryland (pictured: Charles Calvert, 5th Baron Baltimore) and the Penn family  that founded Pennsylvania (pictured: Thomas Penn, proprietor of Pennsylvania) led to the creation of the Mason-Dixon line.

This Long, Violent Border Dispute Between Colonial Maryland and Pennsylvania is Why We Have the Mason-Dixon Line

Cresap's War was a conflict that didn't get fully settled for almost 50 years

Henri IV depicted as Hercules vanquishing a hydra. All in a day's work.

The Second Life of Henri IV’s Severed Head

Whether it's lying in the grave or sitting in a Paris bank vault, the monarch's cranium has been the subject of much debate since his untimely demise

"America is lost!" wrote George III.

Now We’ll Finally Get to See the American Revolution Through the Eyes of King George

A treasure trove of nearly 350,000 documents, about to be released to the public, reveals new insights about how George III lost the colonies


Hi-Res Photography Reveals New Details of the Centuries Old Aberdeen Bestiary

Fingerprints, wear marks and other details show the beautiful manuscript was once a teaching tool, not a royal collectible

Bhumibol Adulyadej, also known as King Rama IX of the Chakri Dynasty

What to Know Now That the King of Thailand Has Died

Political uncertainty and potential unrest follows the death of the beloved Bhumibol Adulyadej

Queen Liliuokalani of Hawaii, overthrown by sugar plantation owners and U.S. troops in 1893

Rule Allows Native Hawaiians to Form Their Own Government

A rule by the Interior Department will allow indigenous Hawaiians to vote on creating a sovereign government similar to those of Native American tribes

Robe volante, c. 1730

The Robe Volante, the First Comfortable Dress in France, Sells for $150,000

The sweatpants of its day for courtiers, the style was a rebellion against the elaborate, corseted dresses of Louis XIV's court

Excavations of a Dark Ages palace on the Tintagel Peninsula in Cornwall

A Palace Was Unearthed Where Legend Places King Arthur's Birthplace

Archaeologists at Tintagel uncover walls and artifacts from a Dark Ages complex likely used by local kings

The leaves stained with Albert I's blood

Bloody Leaves Help Solve 82-Year-Old Royal Mystery

King Albert's untimely death sparked a range of conspiracy theories about the cause

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