Inventors (1204 pages found in this category)

Penny theatre

Popular form of entertainment in the poorer areas of Victorian cities.

Percy Houfton

Late 19th and early 20th-century English architect.

Perfect number

A perfect number is a positive integer the sum of whose proper divisors is equal to the number itself.


Range of columns surrounding an architectural feature.


Redirected to peristyle.

Perran Foundry

Cornish foundry established in 1791 to supply steam-engine pumps and heavy machinery to mines, waterworks and ironworks.


Mostly rural parish in West Cornwall.

Peter Beatty

English racehorse owner, businessman and aristocrat

Peterloo Massacre

Cavalry charge on 16 August 1819 into a crowd of 60,000–80,000 that had gathered at St Peter’s Field, Manchester, England to demand the reform of parliamentary representation


An 18th-century ghost show developed by the impresario Paul de Philipsthal, also known as Philidor.