He had sailed on Friday.

He had discovered America on Friday.

And on Friday he safely returned to his home.
His journal of the voyage ends with these words: "I see by this voyage that God has wonderfully proved what I say, as anybody may convince himself, by reading this narrative, by the signal wonders which he has worked during the course of my voyage, and in favor of myself, who have been for so long a time at the court of your Highnesses in opposition and contrary to the opinions of so many distinguished personages of your household, who all opposed me, treating my project as a dream, and my undertaking as a chimera.

And I hope still, nevertheless, in our Lord, this voyage will bring the greatest honor to Christianity, although it has been performed with so much ease.".