How have the overall spending trends of presidential campaigns changed since the 1960's?

The overall trend of spending during presidential campaigns since the 1960´s has shown an enormous increase. The explanation resides in various factors: - inflation (change of the value of the dollar, making necessary more dollars to achieve the same);  -also the equation that there are more inhabitants, meaning, more donors.  - Since the income of the people increased, there is also more money to donate.

operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings

"germany's geographic location was an advantage when it was on the offensive in the war because it was situated next to an extremely wide river, the rhine, which was difficult for the allies to cross."