Past or present tense when talking about firsts that happened in the past?

When talking about firsts that happened in the past, is it okay to use the present tense?

For instance, if we want to talk about George Washington being the first president of the United States, could we say:
"George Washington is the first president of the United States."?

Technically he still is the first president and will be the first for the rest of time. But, he is no longer the president so should the statement be made in the past tense?

Answer

No, George Washington was the first president of the United States. The simple past (was) is used to describe an action that started and finished at a specific time in the past. The simple present (is) is used to describe a general truth ("He is tall") or a specific condition ("He is coming") that currently applies. We can certainly say that George Washington is dead, or that George Washington is a hero to many, because we are then describing a current condition. Neither would we say "John Adams is the second president of the United States," even though there will never again be a second president. Of course we do say Obama is the 44th president, but in two years, this will be He was the 44th president, even though there will never be another 44th president. In other words, the fact that something is or was the first or the second or the 44th does not matter at all.