The Gra predicted the Holocaust. He said the book of Deuteronomy is divided into ten sections. Each section correspond to 100 years of the the 6th thousand year period. That starts at 1240. So 1939 is the very end of the section called "Ki Tavo" כי תבוא". The end of the section are the curses.
When he was explaining this to his disciple Rav Haim of Voloshin Rav Haim asked him where is the Gra himself hinted at in the Torah. He said אבן שלמה יהיה לך a perfect stone will be to you. [That is a stone use as a weight for measuring. "A perfect stone" is the letters Eliyahu ben Shelomo. Taking this a bit further one can see that it is a command of the Torah to walk in the path of the Gra since it says " a perfect Stone (the Gra) will be to you."
[This ends at 2240 AD. Then a new cycle will begin, I assume on Mars. But it could be that will be to the stars.]
When he was explaining this to his disciple Rav Haim of Voloshin Rav Haim asked him where is the Gra himself hinted at in the Torah. He said אבן שלמה יהיה לך a perfect stone will be to you. [That is a stone use as a weight for measuring. "A perfect stone" is the letters Eliyahu ben Shelomo. Taking this a bit further one can see that it is a command of the Torah to walk in the path of the Gra since it says " a perfect Stone (the Gra) will be to you."
[This ends at 2240 AD. Then a new cycle will begin, I assume on Mars. But it could be that will be to the stars.]