en

1. in, at, on
2. in (a time)
3. in (a language)
4. used after some verbs and translated by various prepositions in English
5. in (in various expressions)

los

• Article

  the

• Pron

años

plural of año

siguientes

plural of siguiente

el

masculine singular definite article; the

se

• Pron

  1. third person (also used for usted and ustedes) reflexive direct or indirect object oneself, himself, herself, itself, yourself; each other; one another
  2. used to convey the meaning of the English passive voice in the third person and with usted and ustedes

• Verb

expandió

third-person singular preterite indicative of expandir

por todo

in total