New genetic research now suggests that when the ancient Inuits migrated from Siberia to North America they brought their dogs with them. Considered one of the toughest and strongest breeds, this ancient Siberian canine was so indispensable, the genetic research shows the Inuits used them exclusively. They did not even interbreed with the new dogs they found in North America. The new study showed that over 4,500 years, Inuit new dogs were and remained genetically distinct and physically different from the dogs who arrived earlier in North America.
Where the humans went they brought their dogs, so Inuit dogs rapidly dominated and spread eastward in the North American Arctic alongside their humans' migration. Because the Inuit remained faithful to their sled dogs, the pre-existing native dogs were almost completely replaced.
This genetic distinction has been maintained through today, too. The study compared 922 Arctic dogs and wolves who lived over 4,500 years. Modern sled dogs, according to their genomes, are some of the last direct descendants of the breed the Inuit brought with them from Siberia.
Etymology -- the study of words' origins -- is pretty interesting. African currencies are an excellent example. How far back do you go for a words' "true" origin? Sierra Leone's currency, the Leone, comes from the Spanish "lion mountains" ("sierra" + "leon"). The Spanish word for lion comes from the Latin word for lion "leonem." But that Latin word comes from Greek "leon", which in turn comes from a non-Indo-European language, likely a Semitic language. The Greek word leon sounds similar to the Hebrew labhi (lion) and Egyptian labai (lion) and lawai (lioness). So which language do you count as the "origin" of Sierra Leone's currency? How far back do you go?
In Laconia, the district around Sparta, and specifically in Maina, now Mani Peninsula, the inaccessible middle finger of the Peloponnese, there were people who worshipped the Greek gods until the 800s CE. They finally began converting to Christianity under Byzantine Emperor Basil I (867–886 CE). However they were still having to be re-converted for generations, which we know because the Orthodox preacher (and eventual saint) Nikon the Metanoeite did missionary work in Maina around the 950s.
The Mamluks were a corps of slaves which went from being the elite bodyguards of the Ayyubid Caliphate founded by Saladin, to running Egypt for themselves. It lasted as an independent state for over 250 years, from 1250 to 1517 when Egypt was conquered by the Ottoman Empire. But the Mamluks survived.
By the 1630s, a Mamluk emir managed to become de facto ruler of the country. By the 1700s, the importance of the pasha (Ottoman governor) was superseded by that of the Mamluk beys, and it was even made official. Two offices, those of Shaykh al-Balad and Amir al-hajj -- both offices held by Mamluks -- represented the rulers of Egypt. In the name of the Ottoman Sultan, of course. It was only with the invasion of Egypt by Napoleon in 1799 that the Mamluk power center was permanently ended.
The Tiwanaku state dominated the Andean highlands for centuries yet we know very little about them. What we do know comes from their archaeological remains. They appear to have developed in the Lake Titicaca region, and at their peak, they may have only numbered 10,000 to 20,000 people. Recent underwater excavations near the lake's Island of the Sun reveal ritual offerings made by the Tiwanaku centuries before the Island of the Sun was converted into a major Incan pilgrimage site. The finds include puma-shaped incense burners with fragments of charcoal present on the excavated deposits, and a number of gold, shell, and stone ornaments. They date from the 700s to the 900s CE. And they were, intriguingly, found near anchors -- like the offerings had been deliberately weighed to drift the bottom of the lake.
A snapshot of the world of Islam in 1400s. The newest Mongol state, the turkic-mongol Timurid Empire, was at the height of its power, while the last Islamic state was clinging to the Iberian Peninsula. The Kilwa Sultanate was at its peak, controlling much of the trade along the Swahili coast of Africa. Meanwhile India had broken up once again into a series of small kingdoms; the Muslim Mughal Empire was not for another 125 years.
When Michelangelo’s David was unveiled in 1504 in Florence, it was seen to symbolize the civil liberties of the Republic of Florence, which were threatened by the surrounding city-states and the powerful Medici family who wanted to rule. The republican government had only been in place since 1494. The republic's concerns were well-founded: Giovanni de' Medici re-conquered the republic in 1512 and restored Medici rule. The second Florentine duke, Duke Cosimo I de' Medici decided to commission Cellini’s Perseus With the Head of Medusa, which was unveiled exactly 50 years after David in 1554. Composed of bronze, Perseus was deliberately placed opposite the David. Medusa’s gaze appeared to have turned David to stone.
There is no known portrait or depiction of Christopher Columbus that was made while he was alive. So all those statues and images you've seen are based on artists' ideas of what he could have looked like.
The first nautical circumnavigation was by the Magellan-Elcano expedition, which sailed from Seville, Spain in 1519 and returned in 1522. The first successful aerial circumnavigation was completed by aviators of the U.S. Army Air Service in four Douglas World Cruiser biplanes in 1924.
Thanks to /u/NewSwaraelia for the map!