Acts 1:8 “But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.”
“The 100th celebration of the Haystack Prayer Meeting concluded after four days on October 12th, 1906 in Williamstown, Massachusetts. No one would have guessed that a prayer meeting in the middle of a haystack, in the middle of nowhere, in the middle of a thunderstorm would spark the modern American missionary movement. Dr. Edward Capen published an article commemorating the anniversary:
One hundred years ago there might have been seen on a late July or early August afternoon in Sloane’s meadow near Hoosac River in Williamstown, Mass., two piles of hay. The adjoining maple grove still stands, but the haystacks perished long ago. Nevertheless, the site of the northern one is marked by a monument surmounted by a globe and inscribed with these words, above and below a haystack carved out of marble:”
This field is the World
The Birthplace of American Foreign Missions
1806
Samuel J. Mills
James Richards
Francis L. Robbins
Harvey Loomis
Byram Green
Names that have long since vanished in American  history, but not from the pages of God’s records. These men would turn the world upside down and their example would inspire many others to follow them to the uttermost part of the world.”
Taken from “Revival Today – 365 Challenging Devotions from Revival History” by John Goetsch & Nathan Birt