It's important to learn all languages?

Question

I am confused which one I will learn .
or which one I will learn first html or any one ?

Answer 1

this is depend on your choice...
for web development you can start with HTML

Answer 2

You learn a language depend on what you want to use it, maybe it work or career or for fun. Depends on you

Answer 3

start with one language properly, then any language is easy for you(for starting c is a good language for beginner and you must learn java, very very important to understand any language).
so I can said, learn once appeared anywhere