Example sentences of "date back [prep] the last " in BNC.

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1 I am especially pleased to welcome JCI back as a shareholder , a position they held from 1918 until 1979 , cementing the close relationship between our two companies dating back to the last century .
2 Areas found to be at risk include ancient woodlands dating back to the last ice age , internationally rare lowland heaths , meadows and marshes containing many rare species of plants , flowers , animals , birds and insects .
3 O7 ppm although naturally high concentrations of mercury have been found in a number of locations , including Lake Windermere where mud dating back to the last century contains 0.7 ppm . ’
4 Although some attempts at tackling air pollution problems date back to the last century or even earlier , most countries introduced their strategy for air pollution control in the 1950s , 1960s or 1970s .
5 Presumably such militias date back to the last years of the Roman period , although there is no evidence for them in the fifth century .
6 The café , which dates back to the last century , has been maintained intact , at least in its decor .
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