A new phase of the revolution now opened. The working people, excluded from all share in the government by the first French constitution, became restless, especially in Paris. Assembling on the Champs de Mars, a great open field, they signed a petition calling for another constitution giving them the suffrage. When told to disperse, they refused and were fired upon by the national guard. This "massacre," as it was called, enraged the populace. A radical party, known as "Jacobins," then sprang up, taking its name from a Jacobin monastery in which it held its sessions. In a little while it became the master of the popular convention convoked in September, 1792. The monarchy was immediately abolished and a republic established. On January 21, 1793, Louis was sent to the scaffold. To the war on Austria, already raging, was added a war on England. Then came the Reign of Terror, during which radicals in possession of the convention executed in large numbers counter-revolutionists and those suspected of sympathy with the monarchy. They shot down peasants who rose in insurrection against their rule and established a relentless dictatorship. Civil war followed. Terrible atrocities were committed on both sides in the name of liberty, and in the name of monarchy. To Americans of conservative temper it now seemed that the Revolution, so auspiciously begun, had degenerated into anarchy and mere bloodthirsty strife. =Burke Summons the World to War on France.=--In England, Edmund Burke led the fight against the new French principles which he feared might spread to all Europe. In his _Reflections on the French Revolution_, written in 1790, he attacked with terrible wrath the whole program of popular government; he called for war, relentless war, upon the French as monsters and outlaws; he demanded that they be reduced to order by the restoration of the king to full power under the protection of the arms of European nations.