Purpose: To create a visually appealing flyer (mini poster), using Google Slides or Canva, that demonstrates your knowledge of your assigned invention that contributed to the history of photography.

“Calotype.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., https://www.britannica.com/technology/calotype. Accessed 30 Mar. 2026.

Annotation:
This Encyclopædia Britannica article explains the calotype, an early type of photography invented by William Henry Fox Talbot in 1841. It used paper coated with light-sensitive chemicals to create a negative image, which could then be copied into multiple positive pictures. This was important because, unlike earlier methods, it allowed people to make more than one print from a single photo. However, the images were not as sharp as other techniques at the time. Overall, the article helps explain why the calotype was an important step in the history of photography.

“The Calotype Process.” National Gallery of Canada, https://www.gallery.ca/photo-blog/the-calotype-process. Accessed 30 Mar. 2026.

Annotation:

This photo blog from the National Gallery of Canada explains how William Henry Fox Talbot created the calotype and why it mattered in early photography. It describes how he used light-sensitive paper to make a negative image that could be turned into multiple prints, which helped shape modern photography. The blog also talks about what these early photos looked like and why they were unique. It includes some history about Talbot’s work and how his ideas influenced later photography, making it useful for understanding both how the process worked and why it was important.