This sort of thing is not historically unprecedented.

Between 1880 and 1945 European society succeeded in mastering its health environment in a way which was historically unprecedented.

A. There is no arguing that productivity has been improving at a historically unprecedented rate, particularly in the past five years.

We've got a historically unprecedented situation in which:

The decades following the Second World War saw an historically unprecedented growth in retirement at a fixed age for all social classes.

No term limits exist in British politics, and such an announcement was historically unprecedented.

The potential impact of such appreciation on a nation's economy is historically unprecedented due to globalization and free trade.

Furthermore, having commercial names associated with subway stops is not historically unprecedented.

The city has recently undergone development at an historically unprecedented rate.

Cameron survives this and can continue with his historically unprecedented repressive policies 3.