Yet for a few years in the early 18th century Johann Friedrich Bottger was a genuine Rumpelstiltskin.

在18世纪初，约翰·弗雷德里克·博特格还是个真正的少年。

It was discovered as far back as 1869 by Johann Friedrich Miescher, a Swiss scientist working at the University of Tubingen in Germany.

可是，直到1869年，DNA才由一位任职于德国蒂宾根大学的瑞士科学家约翰·弗里德里希·米歇尔发现。