Answer:
that thing being really special
Explanation:
If the underlined phrase is <em>born in New York in 1856, </em>then that would be a participial phrase, which often functions as an adjective in a sentence, like is the case here.
Gerund is always used as a noun, and infinitive has the form <em>to + verb </em>(to go, to be...)
Identify important words and phrases.
Is a abc answer because it posted to cause I did that before