Scientific socialism originated in the middle of the nineteenth century.

This concept originated in Britain in the middle of last century.

In the 16th century (or the middle period of the Ming Dynasty), Shanghai became the national center of textile & handicraft industry.

The cemetery dated back to the middle of the 19th century, and there were many former soldiers there, and in the back, some slaves.

Likewise, there was a time around the middle of the last century when the world was briefly convinced 3D was the future of cinema.