Answer:
He was the first to sail around Africa to India
Explanation:
A deal to buy California and settle the Texas boundary line--Slidell worked as an ambassador to Mexico to offer $25 million for California and agreement to set the boundary line of Texas at the Rio Grande.
Slidell brought this deal to Mexico partly because Texas was a free independent state that wanted to be annexed by the US but had not settled their southern border. The US wanted the boundary settled before annexing Texas. Also the wanted the California region to expand land holdings. Mexico rejected the offer.
It wasn't until 2012 that Feely and a team from Oregon State University finally showed with certainty that acidification had caused the problem.
Depending on the goods, but most likely individual rights.
