Date: August 12th, 2026 6:17 PM
Author: https://imgur.com/a/o2g8xYK
1618: Meets Beeckman in Breda (Nov); solves geometry puzzle; decides to join the army of Prince Maurice of Nassau
1619: Writes Beeckman from Breda (Mar 26) about a universal mathematics; three famous dreams in winter quarters (Nov); resolves to reform all knowledge
1620: Follows Tilly's army to Bohemia; stays in Prague until Dec; studies Tycho Brahe/Kepler with local scholars; writes Olympica
1621: Travels through Hungary, Moravia, Silesia, Pomerania; meets mathematician Faulhaber
1622–23: Returns through Paris, Touraine, Poitou, Rennes; meets Mersenne and Mydorge in Paris (early 1623); sells estate inheritance, freeing him to devote himself to intellectual work.
(http://www.autoadmit.com/thread.php?thread_id=5892495&forum_id=2.#50064316)