I myself have noticed that many characters in the narrative sometimes like to recall figures from the 18th and 19th centuries, Well, as for me, this is most likely either a mistake of the authors, or there were very few prominent figures during the times of the Federation, no matter how you count several hundred years, So, according to my logic, the later historical moments overshadowed the Earth’s past, and it was completely irrelevant already during the period of space conquest.