Editing Question mark (section)

===Opening and closing question marks in Spanish===
{{Main|Inverted question and exclamation marks}}
[[File:Question opening-closing.svg|thumb|upright=0.6|class=skin-invert-image|Opening and closing question marks]]
In Spanish, since the second edition of the {{lang|es|Ortografía}} of the {{lang|es|[[Real Academia Española]]|italic=unset}} in 1754, interrogatives require both opening {{char|¿}} and closing {{char|?}} question marks.{{sfn|Truss|2003|page=142–143}}<ref>{{cite book |publisher=[[Real Academia Española]] |location=Madrid |title=Ortografía de la Lengua Castellana |language=es |url= https://archive.org/details/ortografiadelale00acaduoft |date=1779 |orig-date=1754 |via=[[Internet Archive]]}}</ref> An interrogative sentence, clause, or phrase begins with an [[Inverted question mark and exclamation point|inverted question mark]] {{char|¿}} and ends with the question mark {{char|?}}, as in:
:{{lang|es|Ella me pregunta «¿qué hora es?»}} – 'She asks me, "What time is it?{{"'}}
Question marks must always be matched, but to mark uncertainty rather than actual interrogation omitting the opening one is allowed, although discouraged:<ref>[http://lema.rae.es/dpd/srv/search?key=interrogación#3d Interrogación y exclamación (signos de). Punto 3d.]</ref>
:{{lang|es|Gengis Khan (¿1162?–1227)}} is preferred in Spanish over {{lang|es|Gengis Khan (1162?–1227)}}
The omission of the opening mark is common in informal writing, but is considered an error.  The one exception is when the question mark is matched with an exclamation mark, as in:
:{{lang|es|¡Quién te has creído que eres?}} – 'Who do you think you are?!'
(The order may also be reversed, opening with a question mark and closing with an exclamation mark.) Nonetheless, even here the {{lang|es|Academia|italic=unset}} recommends matching punctuation:<ref>[http://lema.rae.es/dpd/srv/search?key=interrogación#3b Interrogación y exclamación (signos de). Punto 3b.]</ref>
:{{lang|es|¡¿Quién te has creído que eres?!}}
The opening question mark in Unicode is {{unichar|00BF|INVERTED QUESTION MARK|html=}}.