6 sentences with 'millennia'
Example sentences and phrases with the word millennia and other words derived from it.
• « Several millennia ago, the only lead present in the snow and ice of Antarctica and Greenland was of natural origin: the erosion of rocks and soils by the wind and the activity of volcanoes discharged the element into the environment. Later, and especially in the last century, man-made pollution has been added. »
• « Given the rich dietary options in the region at the time, people lived in small communities for millennia without feeling compelled to build larger settlements. »
• « Over the millennia, rainwater washed many of the gemstones into the Smoke Gorge; others were buried in a volcanic vent about two kilometres deep and 200 metres wide on average, which is where the mine is today. »
• « While technical systems change rapidly, the systems that govern our social behaviour have evolved very little in the last two millennia. »
• « Cave paintings in the Sahara indicate - more than six millennia ago - an essential moment in prehistoric art. In the figures of rulers, warriors and shepherds, a capacity for abstraction emerges that will become a constant feature of the African world. »
• « After that, progress accelerated in earnest. Within a few millennia, wood gave way to coal as a source of human energy, then coal was replaced by oil, and oil is now giving way to uranium 235 from nuclear power plants (already producing 20 per cent of the world's electricity). »