Poulnabrone Dolmen: Neolithic Portal Tomb of the Burren
Excavation revealed the remains of more than 30 Neolithic people, making Poulnabrone one of the best-studied portal tombs in Ireland.
Every Chronicle article on world history, newest first: battles, empires, disasters, discoveries and revolutions.
Excavation revealed the remains of more than 30 Neolithic people, making Poulnabrone one of the best-studied portal tombs in Ireland.
The mass grave became the first clear proof of large-scale lethal violence among Europe's earliest farmers.
Found in 1911, the relief became one of the best-known images of Ice Age art and a focus of debates about fertility, calendars and symbolism.
Three crania announced in 2003 provided well-dated evidence of nearly modern humans in Africa about 160,000 years ago, supporting an African origin for Homo sapiens.
Some 225 tonnes or more of fossil material reached Berlin, including the giant sauropod Giraffatitan, mounted in 1937 and still one of the tallest dinosaur skeletons on display.
Rock surfaces at Mistaken Point preserve some of the oldest known communities of large, complex organisms, recognised as a UNESCO World Heritage Site in 2016.
About 105,000 people died, most in fires; Tokyo and Yokohama were largely destroyed and thousands of Koreans were murdered in the aftermath.
German victory; Crete was captured, but losses among German airborne troops were so heavy that Germany never again launched a major parachute operation.
Nicholas II abdicated, ending three centuries of Romanov rule; a Provisional Government shared power with the Petrograd Soviet.
The Tokugawa shogunate was abolished and a new government ruling in the emperor's name centralised Japan and launched rapid industrial, military and social modernisation.
Of the 87 members of the party, about 48 survived; the rest died of starvation, cold, violence or exhaustion.
A sea-level canal opened in 1869, cutting thousands of kilometres from voyages between Europe and Asia but leaving Egypt deeply in debt.