A recliner is an armchair or sofa that reclines when the occupant lowers the chair's back and raises its front. It has a backrest that can be tilted back, and often a footrest that may be extended by means of a lever on the side of the chair, or may extend automatically when the back is reclined. A recliner is also known as a reclining chair, lounger and an armchair. Modern recliners often feature an adjustable headrest, lumbar support and an independent footstool that adjusts with the weight and angle of the user's legs to maximize comfort. Additional features include heat, massage and vibration. Some models are wheelchair accessible. Recliners can also accommodate a near supine position for sleeping (making them a multifunctional furniture), and are common in airplanes and trains, as well as in homes. Etymology The word recline was first used in the 1660s. Beginning in 1880, the word recliner was used to describe a type of chair. History Around 1850, the French introduced a reclining camp bed that could serve as a chair, a bed and a chaise longue. It was portable and featured padded arm rests and a steel frame. In the late 1800s, many designs were found for motion chairs that were made of wood with a padded seat and back. Designs from France and America included a document or book holder. The first reclining chair was reportedly owned by Napoleon III. Knabush and Shoemaker, two American cousins, are credited with gaining a patent on a wooden recliner. The design was the same wooden bench recliner found in other designs. Issued in 1928, the patent led to the founding of La-Z-Boy. In 1930, Knabush and Shoemaker patented an upholstered model with a mechanical movement. In 1959, Daniel F. Caldemeyer patented a recliner as owner of National Furniture Mfg. Co based in Evansville, Indiana. The design was based on the science of kinetics that he used while serving in the US Air Force. His design was used by NASA for the seats in Projects Mercury, Gemini and Apollo. His chairs were used in the ready room for these missions and can be seen in the movie Apollo 13. The Secret Service bought 50 of them for President Lyndon Baines Johnson as a Christmas gift. A Life magazine photo of President Johnson, post gall bladder surgery, has the President lifting his shirt and showing his scar while