The uses you describe says any decent integrated graphics will do the job, but video editing time depends on both CPU and graphics depending upon the software used and types of editing. Video editing as just clips is generally CPU but changing the graphics in videos does use graphics processor strength. If you stated the system itself and where you are buying it, you can get a better answer than my very generic one.
Most people do not know how to optimize-shop to get best value of what they are buying. Https://www.cpubenchmark.net/cpu_list.ph... CPU benchmarking, and graphics on a second tab. Video edit will also benefit greatly from a solid state drive.
When talking video editing, software is critical to know to try to determine whether CPU or graphics processing is more important. There is new software using graphics vectors that rely much more on graphics processing, but older software is CPU intensive. GT 730 starts at $45 http://www.newegg.com/Product/ProductLis... If you bought a full ATX width PC, you can add a GTX 750 that is a strong graphics card for $110.
There is so much to know in getting a perfect PC at great value, without seeing what you have in mind, any answer to your question is lacking, and knowing the software would be useful also.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.