500
This is the president who:
1. Delivered a proposal to the USSR in a conference, detailing that the countries could fly planes over the other to survey arms supplies. The USSR would reject that proposal but the US would go ahead and do it anyway, resulting in heightened tensions with an incident (Name the proposal, the conference in which he made the proposal, the reason for its rejection, and the incident)
2. The West was focused on the Suez Crisis, so the Russian leader, going against his promise to not be like Stalin, suppressed this group of people (Name the event and the Russian leader)
3. The space race began with this major USSR advancement (Name the event)
4. Important US-USSR visit (Name who visited and where he wanted to visit)
Eisenhower
1. Open Skies Proposal, Geneva Summit/Spirit of Geneva (USSR already knew US's arms but the US did not know so for the USSR and the USSR was deeply suspicious, the U2 Incident - U2 spyplane shot down in Russian airspace);
2. Hungarian Revolt (students and workers tried to gain rights after anti-Stalin promise); Khrushchev;
3. Sputnik (1957) - first satellite, made by the USSR, increasing public's fears of USSR's technological dominance and possible ability to launch attack from space
4. Khrushchev visited the US (First time ever), Disneyland