Over 20,000 years ago, humans won the evolutionary battle against Neanderthals. They may have had some assistance in that from their best friends.

One of the most compelling -- and enduring -- mysteries in archaeology concerns the rise of early humans and the decline of Neanderthals. For about 250,000 years, Neanderthals lived and evolved, quite successfully, in the area that is now Europe. Somewhere between 45,000 and 35,000 years ago, early humans came along.

They proliferated in their new environment, their population increasing tenfold in the 10,000 years after they arrived; Neanderthals declined and finally died away.

What happened? What went so wrong for the Neanderthals -- and what went so right for us humans?

Conflagration at biblical Armageddon preserved gold and silver trove

Archaeologists digging at Tel Megiddo in northern Israel have unearthed what turns out to be one of the largest troves of Canaanite treasures ever found, buried in rubble from destruction 3,100 years ago. The treasure was hidden inside a clay vessel that had been unearthed in the summer of 2010. The pot had been filled with dirt and sent for testing. It was only recently that the dirt was examined in a restoration laboratory and the treasure revealed to their great surprise.

The hoard includes a collection of gold and silver jewelry, beads, a ring and a pair of unique gold earrings with molded ibexes and wild goats that was likely made in Egypt. "We find about 10 [whole] vessels every year. The only thing that was unusual was that the jug was found inside a bowl. It was put inside a bowl 3,000 years ago and was covered by another bowl and it was put in the corner of a court yard," archaeologist Eran Arie told The Media Line.

The hoard is one of the largest and most intriguing ever found in Israel. The treasure likely belonged to a wealthy, perhaps royal, family and was found in the layer of settlement dating to 1,100 B.C., about 150 years prior to the Israelite conquest of Canaan, Arie says.

Archaeologists have found a small room in Mayan ruins where royal scribes apparently used walls like a blackboard to keep track of astronomical records and the society's intricate calendar some 1,200 years ago. The walls reveal the oldest known astronomical tables from the Maya. Scientists already knew they must have been keeping such records at that time, but until now the oldest known examples dated from about 600 years later.

Astronomical records were key to the Mayan calendar, which has gotten some attention recently because of doomsday warnings that it predicts the end of the world this December. Experts say it makes no such prediction. The new finding provides a bit of backup: The calculations include a time span longer than 6,000 years that could extend well beyond 2012.

"Why would they go into those numbers if the world is going to come to an end this year?" observed Anthony Aveni of Colgate University in Hamilton, N.Y., an expert on Mayan astronomy. "You could say a number that big at least suggests that time marches on."

A stone discovered by chance on the Isle of Canna is Scotland's first known example of a bullaun "cursing stone", experts have revealed.

Dating from about 800 AD, the stones are associated with early Christian crosses - of which there is one on the isle.

It was found in an old graveyard by a National Trust for Scotland (NTS) farm manager.

The stone is about 25cm in diameter and engraved with an early Christian cross.

It was later found to fit exactly into a large rectangular stone with a worn hole which was located at the base of the Canna cross.

NTS manager of Canna, Stewart Connor, said the importance of the stone became clear after he was notified of the discovery.

He said: "We knew of the importance of bullaun stones and that it could be a really significant find.

"Our head of archaeology confirmed a possible link to the stone at the cross and I was so excited that I went back out at 9pm that night to check whether it fitted the stone with the hole and it did."

They were the stone-age equivalent of Glastonbury festival. People gathered in their hundreds to drink, eat and party every summer at revelries lasting several days and nights. Young men met women from nearby communities and married them. Herds of cattle were slaughtered to provide food.

These neolithic carousals even had special sites. They were held on causewayed enclosures, large hilltop earthworks built by our forebears after they brought farming to Britain from the continent 6,000 years ago.

This picture of ancient British bacchanalia has been created by researchers led by Professor Alasdair Whittle of Cardiff University and Dr Alex Bayliss of English Heritage. Using a revolutionary technique for dating ancient remains, they have built up a detailed chronology of the first farmers' arrival in Britain and have shown that agriculture spread with dramatic rapidity. In its wake, profound social changes gripped the country, culminating in the construction of causewayed enclosures where chieftains or priests held revelries to help establish their power bases.

A Bronze Age version of Facebook has emerged from granite rocks in Russia and northern Sweden, revealing a thousands-of-years-old timeline filled with an archaic version of the Facebook "like."

Using computer modeling, Mark Sapwell, a Ph.D. archaeology student at Cambridge University, analyzed some 3,500 rock art images from Nämforsen in Northern Sweden and Zalavruga in Western Russia.

"Although this rock art has been documented from the early 1900s, the modeling has allowed a unique look at the interesting way these images have been arranged and accumulated over time," Sapwell told Discovery News.

Carved from about 4000 B.C. up to the Bronze Age, the rock art shows animals, people, boats, hunting scenes -- even very early centaurs and mermaids. It was produced by generations of semi nomadic people, who lived more inland in winter to hunt elk, and then occupied areas closer to coasts and rivers to fish.

Two studies led by scientists from the University of Pennsylvania and National Geographic's Genographic Project reveal new information about the migration patterns of the first humans to settle the Americas. The studies identify the historical relationships among various groups of Native American and First Nations peoples and present the first clear evidence of the genetic impact of the groups' cultural practices.

For many of these populations, this is the first time their genetics have been analyzed on a population scale. One study, published in the American Journal of Physical Anthropology, focuses on the Haida and Tlingit communities of southeastern Alaska. The other study, published in the Proceedings of the National Academy of Sciences, considers the genetic histories of three groups that live in the Northwest Territories of Canada.

Establishing shared markers in the DNA of people living in the circumarctic region, the team of scientists uncovered evidence of interactions among the tribes during the last several thousand years. The researchers used these clues to determine how humans migrated to and settled in North America as long as 20,000 years ago, after crossing the land bridge from today's Russia, an area known as Beringia.

Penn houses the Genographic Project's North American research center.

"These studies inform our understanding of the initial peopling process in the Americas, what happened after people moved through and who remained behind in Beringia," said author Theodore Schurr, an associate professor in Penn's Department of Anthropology and the Genographic Project principal investigator for North America.

Researchers find historic, 19th-century wooden-hulled vessel buried in ocean floor
Ocean researchers stumbled across a historic shipwreck entombed in over 4,000 feet of water during an expedition in the Gulf of Mexico, according to the National Oceanic and Atmospheric Administration.

Scientists aboard the Okeanos Explorer reportedly discovered the approximately 200-year-old, wooden-hulled ship while on a 56-day excursion in a relatively unexplored area 200 miles off the Gulf coast that ended April 29.

A rare glimpse of the 19th-century ocean artifact wasn't all that was found, however, the shipwreck was reportedly laden with additional seafaring artifacts including anchors, navigational instruments, glass bottles, ceramic plates, cannons and boxes of muskets.

When most people think of beheadings they probably think of events far away in time and place, such as Marie Antoinette's 1793 guillotine execution during the French revolution.

But beheadings are hardly a thing of the past; in fact in some places they are becoming increasingly commonplace.

Though most Americans are unaware of it, many beheadings take place very near the United States, in Mexico. As Will Grant noted in a BBC News story,

This month has been perhaps the worst in terms of decapitations. In the past 10 days alone, there have been an unprecedented 81 beheaded bodies discovered in the country. In early May, 14 decapitated bodies were found in Nuevo Laredo, just over the border from Texas. Last week, 18 bodies and severed heads were left in two mini-vans near Lake Chapala, an area popular with tourists in western Mexico. Finally, in one of the most shocking incidents of its kind since the current drug war began, 49 headless and mutilated bodies were left in plastic bags on a road outside the industrial city of Monterrey.

The idea of execution by decapitation is bizarre and horrific, though for millennia public beheadings around the world were fairly common. It's only in modern times that cutting a person's head off has come to be considered barbaric.

In centuries past beheading was actually preferable to other common forms of execution (such as being burned alive or disemboweled). In early England beheading was considered a noble, and even honorable, death. Nigel Cawthorne, author of Public Executions (2006, Capella Press) notes that "Hanging was usually reserved for the lower classes."

More than 400 years before modern-day governments tried shutting down blogs or blocking tweets, two people tasked with censoring a sometimes-critic of the Catholic Church in Renaissance Europe took to their duties in very different ways: one with great beauty, the other with glue and, it appears, a message.

Now, two books, housed at separate libraries at the University of Toronto, illustrate two unusual approaches censors took when dealing with the same author, Erasmus.

Born in Rotterdam around 1466, Erasmus was a prolific writer who sought out wisdom in ancient Greek and Latin texts. His writings, mass produced thanks to the printing press, were at times critical of the Catholic Church.

By the time he died in 1536 the church was breaking apart, with splinter groups known as Protestants coming into conflict with the Catholics. English king Henry VIII was one of the most famous examples of a Protestant, creating a Church of England separate from church authorities in Rome.