Gouzenko Affair (1945): The Defection That Exposed Soviet Spies
Gouzenko's documents exposed a Soviet military intelligence network in Canada, leading to a royal commission, arrests and convictions in 1946.
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Gouzenko's documents exposed a Soviet military intelligence network in Canada, leading to a royal commission, arrests and convictions in 1946.
The largest third-millennium archive found in Syria, revealing an unknown Semitic language and a major kingdom outside Mesopotamia.
The largest earthwork complex of its time in North America, built by people who did not farm; a UNESCO World Heritage Site since 2014.
The largest known city of the early Shang period, it shows the scale of royal power and bronze production before the move to Anyang.
Excavations at Kalibangan revealed a pre-Harappan ploughed field, a planned Harappan town and rows of fire altars, shedding light on Indus farming and ritual.
The Forum became the political, religious and legal centre of Rome and is now one of the world's best-known archaeological sites.
The Minoan language written in Linear A remains unknown; only numbers, some sign values and a few words such as 'total' can be read with confidence.
Memphis served as Egypt's capital through the Old Kingdom and stayed one of its chief cities until Alexandria and later Cairo eclipsed it.
Uruk grew into the largest settlement of its time, where monumental temples, mass administration and writing first appeared together, setting the model for Mesopotamian cities.
A long-lived culture of settled hunter-gatherers that produced some of the world's earliest pottery and gave way to the rice-farming Yayoi culture.
A late hunter-gatherer culture whose sedentary villages and intensive use of wild cereals laid the groundwork for the Neolithic Revolution.
The Lomekwi 3 artefacts, published in 2015, pushed the known start of stone toolmaking back by roughly 700,000 years, to a time before the earliest known fossils of the genus Homo.