An upside-down question mark () is a punctuation mark used in Spanish and other languages to indicate the beginning of an interrogative sentence. It is placed at the beginning of the sentence, before the subject, and is followed by a right-side-up question mark (?) at the end of the sentence.
The upside-down question mark is important because it helps readers to identify the beginning of a question. It is also used to indicate the mood of the sentence, as questions in Spanish are typically spoken with a rising intonation. The upside-down question mark was first used in the 18th century, and it has since become a standard part of the Spanish language.
