The origins of the unrest lie both in the recent turmoil in Kyrgyzstani politics, and in the country's history as a former state of the Soviet Union.

ECONOMIST: Kyrgyzstan

The most enduring embargo in modern day history is a remnant of a Cold War past when the Soviet Union was the enemy and the world was on the brink of nuclear war.

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This progresses upwards with increasing complexity to the end of secondary level education - where a study of world history requires an analysis of the role of specified Russian leaders in the break-up of the Soviet Union.

BBC: Massachusetts: Pioneering Gove's knowledge curriculum

Research into seabed minerals has a long and slightly conspiratorial history, starting in the Cold War with the United States and the Soviet Union surveying the oceans ahead of possible future conflict.

BBC: UK Seabed Resources joins deep-ocean mineral-mining rush