Precession of the perihelion
The essential elements of the scientific method are traditionally described as follows:
Observe: Observe or read about a phenomenon.
Hypothesize: Wonder about your observations, and invent a hypothesis, a 'guess', which could explain the phenomenon or set of facts that you have observed.
Test
Predict: Use the logical consequences of your hypothesis to predict observations of new phenomena or results of new measurements.
When using Google to test for importance or existence, bear in mind that this will be biased in favor of modern subjects of interest to people from developed countries with Internet access, so it should be used with some judgment. For example, a current popular-music group from the United States will probably need many thousands of Google hits before most Wikipedians consider it worthy of inclusion. A similarly important group in a country with less Internet presence will have many fewer hits, if any. An important musician of the 14th century might not show up on Google at all.

I learned, long time ago, that the US politicians are different than our politicians. So I decided to check it, to see if this is a myth or a reality. So, I sent today an email for every US presidential nominee, as a non-US citizen, asking them three simple questions. Here it is the content of the email:
Dear Mr. Barak Obama / John McCain,
