What are the intended purposes of the standard linux folders

Those of us new to Linux have a lot to learn.

One of the questions which may hit you early on is what are the intended purposes of the standard linux folders? Whats a var and what should i put in my bin?

[root@homeserver ~]# cd /
[root@homeserver /]# ls
bin boot data dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var

https://www.google.com/search?q=what+are+linux+folder+intended+use

Its a pretty common question. Lets take a look at the first result

https://superuser.com/questions/91030/what-is-the-intended-purpose-of-top-level-linux-unix-directories-and-what-should

The folders are determined by a reference standard the “Filesystem Hierarchy Standard”.

http://www.pathname.com/fhs/

The last revision was published in 2004.

Thanks for the history lesson, give me the ‘deeets.