Tags
Clean and Simple Presentation
https://elements.envato.com/clean-and-simple-presentation-VR8LCAT
Free 
History Slideshow / Old Memories / Retro Photo Album / Significant Events of Past
https://elements.envato.com/history-slideshow-old-memories-retro-photo-album-s-VRNVULP
Free 
Corporate Film/ Icons and Text/ 3D Cube and Transitions/ Business and Economic Slide/ Presentation by drev0 on CGguy
https://elements.envato.com/corporate-film-icons-and-text-3d-cube-and-transiti-VX785QA
Free 
Colored Butterfly Animated Typeface
https://elements.envato.com/colored-butterfly-animated-typeface-RZSKBZ7
Free 
Abstract Shapes – Simple Slideshow
https://elements.envato.com/abstract-shapes-simple-slideshow-VWLS8DR
Free