How LONG Does It Take?

This is an interesting story. In the early days of sea voyages, a significant cause of death in the sea is a disease now called scurvy. It is even more significant than accidents, combats, storms, and other things. For example, only one third of Vasco da Gama's crew was able to make it to India alive in 1499. What happened to the other two third? Scurvy.

One would think that such a big issue must have attracted a lot of attention and therefore it must have been solved immediately by all means and resources. Here's how we finally came up with the solution:
1536 - Jacques Cartier saved his crews who were dying of scurvy by making a tea from the leaves of evergreen tree. He was advised by the natives of America to do this.
1617 - John Woodall wrote a book that described the curative and preventive effects of lemons.
1753 - James Lind published his experiment and concluded the importance of citrus fruits for sea travels.