Comma help

Hey guys

This is probably going to sound really stupid but I’m a tad confused on questions like these:

On October 13, 1955, at the Six Gallery in San Francisco, Allen Ginsberg read his poem (Howl, being the inauguration of both) a new style in poetry and the Beat movement.

The correct answer is to change the bracketed part into (Howl, thus inaugurating both).

What I don’t seem to understand is that shouldn’t it be a comma splice or whatever? Isn’t ‘Allen Ginsberg read his poem’ a independent clause so don’t we need to follow it up with either a full stop or semi-colon? And isn’t ‘thus’ an adverb so how can it join two difference sentences.

Thanks

yes, “Allen Ginsberg read his poem” is an independent clause. however, “inaugurating both a new style in poetry and the Beat movement” is not. so, “thus” is not joining two different sentences. hope that helped.

Many thanks Paraguas