October 7th 1946 was the start of something big - it was the first broadcast of a programme designed to celebrate, entertain and inform women.
Woman's Hour now attracts an audience of some 2.7 million people across the week - and over 40% of our listeners are men.
Last October we celebrated the anniversary with a special programme of entertainment and there were a range of discussions and interviews during the weeks leading up to the actual day which you can hear again through the archive below.