[en] Abstract from English Wikipedia: Textual criticism is a branch of textual scholarship, philology, and of literary criticism that is concerned with the identification of textual variants, or different versions, of either manuscripts or of printed books. Such texts may range in dates from the earliest writing in cuneiform, impressed on clay, for example, to multiple unpublished versions of a 21st-century author's work. Historically, scribes who were paid to copy documents may have been literate, but many were simply copyists, mimicking the shapes of letters without necessarily understanding what they meant. This means that unintentional alterations were common when copying manuscripts by hand. Intentional alterations may have been made as well, for example the censoring of printed work for political, religious or cultural reasons. The objective of the textual critic's work is to provide a better understanding of the creation and historical transmission of the text and its variants. This understanding may lead to the production of a critical edition containing a scholarly curated text. If a scholar has several versions of a manuscript but no known original, then established methods of textual criticism can be used to seek to reconstruct the original text as closely as possible. The same methods can be used to reconstruct intermediate versions, or recensions, of a document's transcription history, depending on the number and quality of the text available. On the other hand, the one original text that a scholar theorizes to exist is referred to as the urtext (in the context of Biblical studies), archetype or autograph; however, there is not necessarily a single original text for every group of texts. For example, if a story was spread by oral tradition, and then later written down by different people in different locations, the versions can vary greatly. There are many approaches or methods to the practice of textual criticism, notably , , and . Quantitative techniques are also used to determine the relationships between witnesses to a text, with methods from evolutionary biology (phylogenetics) appearing to be effective on a range of traditions. In some domains, such as religious and classical text editing, the phrase lower criticism refers to textual criticism and higher criticism to the endeavor to establish the authorship, date, and place of composition of the original text.

[es] Resumen extraído de Wikipedia en español: La crítica textual es una rama de la , la filología y la crítica literaria que se ocupa de la identificación de variantes textuales en manuscritos o libros impresos. Los escribas pueden hacer alteraciones al copiar manuscritos a mano. Dada una copia del manuscrito, varias o muchas copias, pero no el documento original, el crítico textual podría tratar de reconstruir el texto original (, arquetipo o autógrafo) lo más cerca posible. Se pueden utilizar los mismos procesos para intentar reconstruir versiones intermedias, o recensiones, del historial de transcripción de un documento. El objetivo del trabajo del crítico textual es una mejor comprensión de la creación y transmisión histórica de textos. Este entendimiento puede llevar a la producción de una edición crítica que contiene un texto de estudio académico. Hay muchos enfoques para la crítica textual, en particular el , la y la . Las técnicas cuantitativas también se utilizan para determinar las relaciones entre los testigos de un texto, y los métodos de la biología evolutiva (filogenética) parecen ser efectivos en una variedad de tradiciones. En algunos dominios (edición de textos religiosos y clásicos) la frase crítica inferior se usa para describir el contraste entre crítica textual y alta crítica, que es el esfuerzo por establecer la autoría, la fecha y el lugar de composición del texto original.