To meet the labor demands of tobacco cultivation and harvest, early virginians relied
first on

These planters relied on the unskilled labour of indentured servants or slaves for the bulk of cultivation and production tasks.

Explanation:

Tobacco cultivation was very fruitful for the planters at that time. Every farmer used to land to cultivate two crops of tobacco.

The planters relied on the slaves and servants for the cultivation of tobacco was a finicky crop which required a large work force, an experienced overseer with excellent judgement, a sizeable acreage and a certain amount of plain good luck.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

the enslaved people onboard suffered from illness with some frequency