Https://www.whitehouse.gov/about-the-white-house/presidents/
Check this link hope this help
Johannes Gutenberg was a German blacksmith known for inventing the mechanical movable type printing press<span>. His </span>printing press<span> has been widely considered the most </span>important<span> invention of the modern era because it profoundly impacted the transmission of knowledge.
</span>Its immediate effect<span> was that it spread information quickly and accurately. This helped create a wider literate reading public.
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Here we are again xD
The answer to your question is
B Palestinians terrorists kidnapped and murdered eleven Israeli athletes at the Munich Olympics.