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Special vfx was discovered
Oscar Rejlander combined different sections of 32 negatives into a single image, making a montaged combination print. This started the history of special effects which is still being used till this day. -
First ever special effect film
Alfred Clark created the first-ever motion picture special effects by reenacting the beheading of Mary, Queen of scots. This was done by having a female actor approach a stool and once Clark raised the axe he stopped the recording. To replace her with a dummy and continue recording only to then drop the axe and present her so called head. -
First Stop-motion animation was released
Humpty Dumpty's Circus was released to the public as a 4-minute film with the use of stop-motion edited into an animation with special effects. This was done using clay models and changing their position for each frame as the camera moved at 6 frames a second. -
Green screen was discovered, and first film with it.
The short film The Great Train Robbery by Edwin S. Porter was used to chroma key a new background and was just discovered. This was done by using double exposure to add background scenes to windows which were black when filmed on set. -
First ever CGI film released
The Seven Deadly Sins, a short film, made it to theatres after being the first film to use CGI to create a mini-person. There isn't much evidence to elaborate on this upbringing. -
Special Effects started becoming popular
"A New Hope" was the name of this film known as the first Star Wars as it was the beginning and the pinnacle of special Vfx popularity. The reason for it being viewed by many, it even gained up to 47% of adult viewership. This series continues and carries even more popularity as time has progressed -
The top selling movie of all time that uses special effects
Avatar is the highest-selling movie on the planet with a worldwide box office gross of $2.9 billion. Using special effects such as chroma key, 3d modeling, and even motion capturing. This is only within movies though and does not include TV and video.