Media playback is unsupported on your device Media caption Historic England wants your memories of listed places

People are being asked to "chronicle the nation's missing history" by sharing details of key sites.

Historic England is looking for photos of the country's first mosque set up in Liverpool in 1887 by English Muslim convert Abdullah Quilliam.

The Gloucestershire site of the first smallpox vaccination by Edward Jenner is also on a list of 21 places that require updated details.

Historic England said it wanted people to help "unlock the secrets".

"We want people and community groups across England to share their knowledge and pictures, so we can record important facts about places," it said.

Image copyright Google Image caption England's first mosque, which was recently restored, was opened in Liverpool in the late 1880s

Image copyright Historic England Image caption Images are requested of medieval fireplaces that were once at Tattershall Castle in Lincolnshire

The organisation curates the official list of England's 400,000 most significant historic places and items for the Department for Culture, Media and Sport.

Roger Bowdler, director of listing at Historic England, said: "Many buildings on the list are well-known and even world-famous. But in some cases there is much that remains unknown."

Details and photos are also being requested on:

Rufus Stone in Hampshire - the supposed spot of the tree off which glanced the arrow that killed William II in 1100

Greenham Common Women's Peace Camp between 1982 and 2000 at the Cruise Missile shelter complex in Berkshire

The Zetland, which is the oldest surviving lifeboat in the world, having launched in Redcar in Teesside in 1802

The second ever Boots store, built with a tearoom and library in Nottingham between 1905 and 1907

Perrot's Folly in Birmingham - which is thought to have inspired JRR Tolkien when he wrote Lord of the Rings

The headstone of Hannah Twynnoy, a servant who was eaten by a tiger that escaped from a travelling menagerie in Malmesbury, Wiltshire in 1703

Marianna Lawton, who erected a tombstone to Bullie the Bullfinch in Cheshire in 1853 after allegedly teaching the bird to sing God Save the Queen

Image copyright Historic England Image caption Information is wanted on the monks' lavatory, also known as a reredorter, at Bayham Old Abbey in East Sussex