Spain was founded in 20 January 1479. I'm not sure but I think it was by Christopher Columbus.
You won't notice much at sea. Maybe a slight change in sea level.
Closer to the land though, water will draw away from the land maybe leaving the sea floor exposed. Then it will surge back in, flooding the land and inundating the coastal area.
The answer to your question is: Scientists from around the world need a way to share data they can all understand
This is due to the change from winter to summer solstice
Original horizontality due to gravity