July –John Lilburne is imprisoned for a second time, this time in theTower of London, for denouncing his former commander as atraitor and Royalist sympathiser; the campaign to free Lilburne gives rise to the populist political movement called theLevellers.
30 July – Commissioners ofParliament and ScottishCovenanters meeting inNewcastle upon Tyne set out theHeads of Proposals ("Newcastle Propositions") demanding that the King gives up control of the army and place restrictions on Catholics, as the basis for a constitutional settlement.[2]
^Chalmers, Gordon (1937). "The Lodestone and the Understanding of Matter in Seventeenth Century England".Philosophy of Science.4 (1):75–95.doi:10.1086/286445.