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Alexandria treasure may have been found after more than three hundred years! The wreckage of a ship believed to be Alexandria has been located off the coast of Florida. The Alexandria disappeared during a hurricane in 1623. Accordingly to the manifest records the Alexandria was carrying gold and silver from Venezuela. A Florida treasure hunter Chad Burwick and his diving crews will begin exploring the sunken ship next week in order to corroborate the beliefs that it is Alexandria.

Take out "a" before Florida.

I would add "the" before every "Alexandria."

where are you talking about?

"A Florida treasure hunter "

"Alexandria treasure may have been found "
"the beliefs that it is Alexandria."

o ok thanks

Please find below the corrected version:

An Alexandria treasure may have been found after more than three hundred years! The wreckage of a ship believed to be the Alexandria has been located off the coast of Florida. The Alexandria disappeared during a hurricane in 1623. According to the manifest records, the Alexandria was carrying gold and silver from Venezuela. Florida treasure hunter Chad Burwick and his diving crews will begin exploring the sunken ship next week to corroborate the belief that it is indeed the Alexandria.

The corrections made include capitalizing the names "Alexandria" and "Florida" to maintain consistency, and correcting the use of "accordingly" to "according" to support correct grammar.