Perambulator or Pram in short, was invented by an English garden architect named William Kent in 1733. Kent was commissioned by the Duke of Devonshire to create a transportation device for his children. The first incarnation was a shell shaped basket on wheels meant to be pulled by a small pony or goat. Real prams appeared in the 1800's and around 1870 bassinets were added.
Even though the Victorian prams were elegant and beautiful but in reality they were unstable and not very safe. They were often made of wood and held together by expensive brass joints. Not until 1965, the first stroller with aluminum frames was designed by an aeronautical engineer named Owen Maclaren which spurred an industry and evolved into today's modern strollers.