It was designed by Charles Babbage, a polymath in 19th century. He designed the machine but was never able to build a complete working model in his lifetime due to constraints of fundings. It would take nearly over a century before someone attempted to design a General-purpose computer
Importance of Analytical Engine does not end here. While describing the Analytical Engine in a paper, Ada Lovelace wrote multiple complex progams which could be executed by the Analytical Engine.
This paper arguably makes Ada Lovelace, the first computer Programmer.
The Analytical Engine slid into obscurity in early 20th century. However with the rise of computing in 1940s and 1950s, it was brought into limelight again.