I saw this exclamatory sentence on the internet.
When I searched more, I found that all of the typed Spanish exclamatory sentences have this symbol.
Also, who was the first person that used it, and why?
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Sign up to join this communityI saw this exclamatory sentence on the internet.
When I searched more, I found that all of the typed Spanish exclamatory sentences have this symbol.
Also, who was the first person that used it, and why?
You are referring to the upside down exclamation point, or inverted exclamation mark "¡" a punctuation sign that in Spanish goes at the beginning of a sentence, paring its closing counterpart symbol "!" at the end.
It is important because (pronunciation-wise) sets the needed emphasis and tone of exclamation phrases (both for when read or spoken). Therefore, it is needed in the same sense that an opening inverted question symbol (¿) must appear before a question along with its closing mark (?), as those pairs allow to differentiate phrases otherwise grammatically similar.
See how the same three sentences acquire their informative, questioning or exclaiming forms only with them:
Ellos están viniendo [They are arriving]
¿Ellos están viniendo? [Are they arriving?]
¡Ellos estan viniendo! [They are arriving!]
The opening exclamation sign was first seen during medieval times created by Latin typists; it is in use in the Spanish language (the only one that employs it) since the 18th century; and was first officially recomended by the Real Academia Española in its second edition of 1754.