The word “stairway” was not invented until the late 19th century, but its origins go back much further than that.
It all began with the idea of a stairway for pedestrians, but the idea did not go far.
The early 19th-century German engineer Georg Wilhelm Baer proposed that the stairs be constructed of wooden planks, a product of the time and one that was easily repaired.
Baer also suggested using a stone platform to support the lower part of the stairs, and that the platform would be supported by a rope and a pair of iron legs.
These elements were the foundations of the modern cartwheel.
The idea of using iron legs as a stabilizer of the floor of a cart was not new.
Iron legs were part of a system called “bunk-stabilized” or “buck-stamped” carts that were used by the Roman empire in the second century BC.
In those times, the carts were made with wooden plankins, which were then filled with sand and then rolled down the side of the cart, to be used for a bridge, a store, or a platform.
Buck-stamping, or “buck-sticking,” was an ancient technique that involved rolling the wooden plankin-covered planks up to a height of about six inches (15 centimeters).
The wood would then be glued down with a hard plastic.
Bucking was a highly laborious process.
The glue would have to be applied at a constant rate, as the wooden wood would not expand when the wood was struck, and it would take weeks or months to fully finish the project.
But when a bucking was done, it could be done by hand, with only the use of a screwdriver.
The steel wheels would be secured to the wooden cart, and then the wooden frame would be fixed to the cart.
The wooden frame was also held in place with screws.
As with any other building material, wood could be stretched to allow for the construction of stairs.
This is the method that Baer used, and the wooden stairway was constructed in a series of steps, which can be seen in the image below.
The cart was supported on four metal legs, which could be driven up or down with small screws.
Each leg was driven up by a screw, and each screw was driven down by a lever.
The wheels were driven from one end of the step to the other by a small wheel.
Each wheel was driven by a series and multiple springs.
A number of other designs for stairways were made, and some of them had wooden frames as well.
These stairways could be used to reach places that were not on the main road.
However, in many cases, they were not used.
Some people believed that the wooden frames would have helped prevent a car from jumping a curb.
They also thought that the carts would be more stable when the car was parked on the street and not on a hillside.
As a result, many people did not use the stairways, and many buildings did not incorporate them into their buildings.
The problem with the stairway system, however, was that it was not practical to have a stair in every building.
Many buildings would only allow for one step.
And there were other problems with the wooden floor.
The first step could easily be lost or damaged if it were not kept in place.
It could be knocked over by the weight of a child or by a bird.
And when a step was lost, it would not be repaired.
Finally, the wooden framework was too thick for a person to walk on it.
If a person were to fall off the stair, the structure would fall apart.
For many years, many architects used wooden floors, but eventually they started to use metal floors and made the stair system more practical.
In the late 1800s, several architects began to use steel and concrete for stair systems.
These steel and cement stairways would be used in many other parts of the world, including Japan.
Today, the U.S. is home to a large number of steel stairways that are used to access buildings in several different buildings.
But there is one building that still uses wooden stairways for its stairway systems.
In 2001, the steel-and-concrete tower at the National Cathedral of San Francisco was renovated and was now a steel stairway.
The stairs are made of concrete and were originally designed for a smaller building in San Francisco, but they were modified to allow them to be installed in larger buildings.
In addition, there are many smaller buildings that use the same steel- and concrete stairways as the cathedral.
In fact, many of these stairways are still in use today.
This article was originally published on The Wall St. Journal.
Reprinted by permission.