World news: Indonesia, Germany, Mexico
Earliest known rock art ever found in Indonesia; skulls relating to sacrificial ceremony found in Tenochtitlan; German enigma machine discovered in Bay of Gelting.
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Aztecs: where eagles dare
Buried beneath Mexico City lie the remains of the Aztec capital of Tenochtitlan and its sacred centre. Lucia Marchini reports on an exhibition investigating wealth, worship, and empire in pre-Hispanic Mexico.