What does ever mean?
The first ever cartoon produced in Afghanistan.
I can use it in negative and interrogative question. But in affirmative sentences I don´t know what it means.
Which words can I relate it?

Question

What does ever mean?
The first ever cartoon produced in Afghanistan.
I can use it in negative  and interrogative  question. But in affirmative sentences I don´t know what it means.
Which words can I relate it?

Answer

"ever" is the contrary of "never", it means "at any time".

Answer

= The first cartoon ever produced in Afghanistan.

Ever= from the beginning until now.
"beginning" can vary according to context.

Answer

"ever" = "at any time"

Which is why it can't really work in positive sentences. Use something more suitable like "often", "always" or even "once" (if it was one event).