Markup for an encyclopedia article

The structure type is used to mark up encyclopedia articles, particularly ones that contain detailed information on a defined term as well as additional information such as its category, reference list, or illustration.


<div itemscope itemtype="">
  <h2 itemprop="title">Agniya Lvovna Barto</h2>
  <meta itemprop="category" content="Children's literature">
  <meta itemprop="category" content="Soviet authors">
  <div itemprop="content">Agniya Lvovna Barto [р. 4(17).2.1906, Moscow], Soviet Russian poetess. She was
  first published in 1925. Writes for children about life in Soviet schools, family, and the Young Pioneers.
  Author of poem compilations: "Little Brothers" (1928), "Vice-Versa Boy" (1934), "Toys" (1936), "The
  Bullfinch" (1939), "Poems for Children" (1949; Awarded the State Prize of the USSR, 1950), "I Grow" (1968),
  and others, screenplays for the films titled "Foundling" (1939), "The Elephant and the String" (1946),
  "Alyosha Ptitsin is Building his Character" (1958), and others. Distinguished by their light humor and
  clear language, the poems of Barto gained extensive popularity among young readers and adults alike; they
  have been translated into the languages of nations within the USSR as well as into many foreign languages.
  In the prose books for adults titled "To Find a Person" (1969), the author tells about her searches for
  the families of children who got separated from them during the Great Patriotic War (World War II). It
  received 3  awards as well as medals. Works: Poems for Children, vol. 1-2, M., 1966. </div>
  <div itemprop="references">Ref.: V. Dmitrieva, Agniya Barto, M.-L., 1953; B. Solovyev, Agniya Barto, M.,
    <span itemprop="author">E.A. Taratuta</span>.
    <span itemprop="source">Great Soviet Encyclopedia</span>, <span itemprop="source-date">1969-1978</span>.
  <img itemprop="photo" src=""></img>

The structure type may contain the following properties:

  • title — heading of the article.

  • content — text of the article.

  • category — category or topic. One article may belong to several categories.

  • references — list of references, links, etc.

  • author — author: name, academic title, or other distinguishments;

  • source — source;

  • source-date — date of publication (in the specified source and/or by the specified author, but not on the website where the encyclopedia or dictionary is published).

  • photo — images. There may be several images.


In most cases, the value of the property is the text contained within the HTML element marked with the itemprop attribute. Some elements are exceptions to the above rule:

  • Element <meta>: the value of this property is the value of the content attribute (thus, in the above example the structure contains two different entries for the category property with the values “Children's literature” and “Soviet authors”).

  • Element <img>: the value of this property is the value of the src attribute (in the above example, the value of the photo property is the link to the image).

  • Element <а>: the value of this property is the value of the href attribute.

For a full list of exceptions, please refer to the microdata specification.