Events in History May 6 Johan Mauritius resigns as governor of Brazil May 23 Johan Mauritius van Nassau resigns as head of Civil rights activists May 27 Battle of Shanhai Pass: Li Zicheng's army defeated by combined Ming and Manchu force May 28 Bolton Massacre by Royalist troops under the command of the Earl of Derby (English Civil War) 1643 Pure History by Year 1645 Historical Figures Authors Civil Rights Activists Inventors Kings Revolutionaries Scientists