Portal:London transport/Anniversaries/12 September


 * 12 September
 * 1901 – District Railway sells Brompton and Piccadilly Circus Railway to the Metropolitan District Electric Traction Company.
 * 1932 – District line extends from Barking to Upminster.
 * 1960 – Rickmansworth to Amersham and Chalfont & Latimer to sections of Metropolitan line electrified.