You can say Armstrong was the first man that walked on the moon, you can also/still say he only briefly walked on the moon. Claiming that if someone has done something briefly he suddenly hasn't done it (or somehow twisting things as if that is what skiesboy is claiming) is very silly.
your attack, because that is how it comes across (maybe you didn't mean it that way), is completely unwarranted imo.
I can briefly dance on my roof, I will definitely have been the first to have danced on my roof (It is pointed and nobody has been on there since it was build decades ago)
*my rooftype apparently is called gable