This could be either "early" or "late."
Overdue is the word you're looking for, crossword filla lol
Freight Train
the exact date isn't certain but it is predicted that she was born in the year 1787
It is called a premature baby.
If you ask a crossword question, please include the date (including year) and the name of the publication where the crossword is found. Otherwise, it is hard to know which crossword puzzle you are referring to. :)
That depends on the date of the crossword. Please see the related questions for specific answers by date.
.... within a week or so either side of the predicted date.
Sunday February the 15th 1942 was when the New York Times ran their first crossword puzzle. They had resisted prior to that date as they thought crossword puzzles were frivolous.
Up to date
There is no specific predicted date for Armageddon. It is a concept from various religious beliefs and interpretations, and its timing is not definitively known.
it was invented in the 1830's
That depends on the date of the crossword. Please see the related questions for answers for specific dates.