Timeline: John Robert Kellenberger: Gerber Family of Langnau

1947 - 1958 (11 years)

	Date	Event(s)
1	1757	1757: Great Britain - William Pitt the elder becomes Prime Minister 1757: India - Robert Clive wins the Battle of Plassey and secures the Indian province of Bengal for Britain 1757: Great Britain - John Campbell invents the sextant.
2	1758	1758: Great Britain - Dolland invents the achromatic lens. 1758: Great Britain - Ribbing machine developed in England to make Jedediah Strutt stockings.

Gerber Family of Switzerland