The document traces the history of key technologies that shaped photojournalism from its origins with the wet collodion process in the 1800s to modern developments like digital photography, drones, and social media. It describes early processes like the wet collodion and dry plate methods and how technologies like roll film, Speed Graphic cameras, and color film expanded photojournalistic capabilities. Later sections discuss how computers allowed digital transmission of photos, drones granted aerial views, and social media gave anyone a platform to be a photojournalist.