Drywall was invented in the early 20th century. When it came into common use is a different story altogether.
In my experience (I'm an electrician who does a lot of remodel work) it isn't safe to assume that drywall was used in the construction of a house unless the house was built after about the mid 1960's.
I say "safe to assume" because I charge a heck of a lot more to do remodel work on plaster/lathe walls than on drywall.
Drywall was invented by US Gypsum around 1916 but was not used in home construction.
In 1945, after WW II, a main executive of US Gypsum was a neighbor of my parents, who were putting on a large addition to their home. US Gypsum provided the Gypsum board (as drywall was called at the time) and the instillation at no charge with the understanding they could use this for publicity.
Photographers were on site to take photos and a large article with color photos appeared in Home and Garden Magazine. The US Gypsum person who remained life long friends with my father said many times that that started them on the way to having houses built with Drywall. We lived in the outskirts of Chicago, which at the time was out in country. Following the war there was a huge building boom. Most of the homes in the area built in the late 40's and early 50's used drywall. My Grandfather was a contractor.
drywall replace plaster on 1945
The drywall paper came off along with the wallpaper because the wallpaper adhesive was stronger than the bond between the drywall paper and the drywall itself.
You will be very careful when you deciding for the drywall color. You should not check the color when there is too much light shining on the wall. After that you can find color you want for your drywall repair.
It is possible to use VCR mounts on drywall. Some VCRs come with mounts specifically for use on drywall. In the long run, however, it is probably best to secure the VCR mount on a wall stud, rather than just hanging it on the drywall.
not unless it specially ordered and even then it has to be a large amount. it does regularly come in widths of 8,9,10,12,and 14 foot lengths. there is also 12 ft x 54 inch drywall.
1.2B pounds
As far as I know all National Gypsum products come from USA.
the drywall screw didnt come loose the paper that the screw is holding to the wall is what came loose. a screws function is mostly in the head or flange of it. if the head goes throught the paper rather than just indenting the paper, then it ceases to hold anything and the drywall will go in and out around the screw heance the term " screw pop" .
White drywall is just normal everyday drywall.
If it is glued to the wall and the wall is drywall/sheetrock, then the paper of the drywall will come off with the mirror. Drywall/sheetrock repair will be necessary. Your best bet is to use a glaziers set of suctions cups. Buy pulling with enough pressure, the mirror will eventually break loose. It WILL damage the drywall, so either replace the mirror or the drywall. It is the mastic you are trying to break. Just before it comes loose, you will know it.
Rub it with a damp rag, it will come off quite easily.
A drywall dimpler is a drill bit used to countersink a drywall screw to the proper depth without breaking the drywall paper.