When the New World came to be viewed by the hungry capitalists as having a potential for agricultural exploitation, New World labor needs expanded astronomically.
"The Black Experience in America The Immigrant Heritage of America"
Norman Coombs
The hours are counted from 0 to 24, so that 10 o'clock in the morning of October 25th is astronomically October 24th, 22 hours or 22 o'clock of October 24th.
"Lectures in Navigation"
Ernest Gallaudet Draper
In 1526, Sebastian Cabot was sent by the Spanish government to determine astronomically the location of the line in America, and then to follow Magellan's track to western Asia.
"The South American Republics Part I of II"
Thomas C. Dawson