<i>400 Years in 4 Minutes</i>: Brief history of cake making, followed by a home economist. Shows the <a href="https://en.wikipedia.org/wiki/Betty_Crocker" class="extiw" title="w:Betty Crocker">Betty Crocker</a> method of cake baking.
The Calvin Company for <a href="https://en.wikipedia.org/wiki/General_Mills" class="extiw" title="w:General Mills">General Mills</a>, Neal Keehn author and director
<a rel="nofollow" class="external text" href="https://archive.org/details/400_years_in_4_minutes">Internet Archive</a> (<a rel="nofollow" class="external text" href="https://ia802703.us.archive.org/33/items/400_years_in_4_minutes/400_years_in_4_minutes.mp4">direct link to video</a>)