Until the year 1800, loud speaker...

[thehammer]

Which one sounds natural?

1- Until the year 100, loud speaker had never been part of celebration.
2-Until the year 1800, loud speaker had never been part of celebrations.
3- Until the year 1800, loud speaker had never been part of any celebrations.
4- Until the year 1800, loud speaker had never been part of a celebration.

 

[Skrej]

None of them are natural, grammatical, or even meaningful. What do you mean by 'loud speaker' ?

Also, I think you accidentally left an '8' out of your year in sentence #1.

 

[Barque]

Till 1800, loudspeakers weren't a part of celebrations.

Were there loudspeakers before then? I doubt it.

 

[emsr2d2]

We need to clarify what you're talking about. Do you mean the sort of speaker you get with a music system or the handheld kind used by someone making an announcement in a public area?

 

[thehammer]

We need to clarify what you're talking about. Do you mean the sort of speaker you get with a music system or the handheld kind used by someone making an announcement in a public area?

A music system.

 

[emsr2d2]

Were speakers for music systems really invented in 1800?

 

[5jj]

I'd have said it was more like the 1920s or 1930s.

 

[emsr2d2]

I'd have said it was more like the 1920s or 1930s.

So would I but I was hoping the OP would back up their statements in post #1.