J.S In-camera Editing.

In-camera editing means filming shots the exact way they will be viewed in cinemas. This means they would have to plan in advance what they are going to film and how and then shooting them in that order. This was instead of shooting scenes more than once and doing several takes then editing them to suit. You basically edit the film as you're filming, as opposed to editing afterwards.

J.S How Editing Has Developed.

In the 1880's editing wasn't used at all, over the years it has developed massively and now it is used all the time. It is always developing, even to this day. Edwin Stanton Porter and D. W. Griffith , the American film maker are thought to of been two of the first to experiment with editing. Edwin Stanton Porter made the breakthrough film Life of An American Fireman where he had a close up which had never been done before.