This study aims to find inclusion of an LGBTQ+ perspective, and possible inclusion of the LGBTQ+ perspective in teaching material used in history at an upper secondary school level in Sweden. The case study analysed material from five teachers who shared material which covered five time periods which were the following: Prehistory and Prehistoric times, Antiquity, the Middle Ages, and the 20th century. These time periods were selected since they are included in compulsory history courses. I.e., it is the history education that all upper secondary school students are taught. The results showed that of these five time periods three out of five teachers included the LGBTQ+ perspective in their teaching material although it was minimal. The LGBTQ+ material was mainly included during Antiquity, and one teacher included it in the 20th Century. One of the teachers also mentioned homosexuality in a presentation about the first civilizations but as a parallel. Possible LGBTQ+ inclusion was identified using a queer theoretical perspective, and existing LGBTQ+ history. Finally, it was identified that this area is unexplored in a Swedish context, and that further research of LGBTQ+ history is needed.