8. to imp their serpent wings. To _imp_ a wing with feathers is to attach feathers to it so as to strengthen or improve its flight. The word is originally a term of falconry. See Richard II. II 1 292. See also Murray's _New English Dictionary_. 13-14. Valor, Avarice, Rapine; personified abstracts, after the manner of our earlier poetry. XVI. As Secretary for Foreign Tongues to the Council of State of the Commonwealth, Milton saw much of Cromwell, and came under the influence of his voice and manner. Whether the great general had ever taken note of the poems written by the secretary who turned his despatches into Latin, or whether he gave any special heed to the man himself, with whom he must have come into some sort of personal relation, we have no means of knowing. We know, however, perfectly well what the poet thought of the victorious general. Though by no means always approving his state policy, Milton retained to the end the warm personal admiration for Cromwell which he expresses in this sonnet. 7-9. Darwen stream, usually spoken of as the battle of Preston, was fought Aug. 17, 1648; Dunbar, Sept. 3, 1650; Worcester, Sept. 3, 1651. 12. to bind our souls with secular chains: to fetter our religious freedom with laws made by the civil power. 14. hireling wolves. Milton applies this degrading appellation to clergymen who received pay from the state. His appeal to Cromwell was not successful. Cromwell was to become the chief supporter of a church establishment. XVII (1652). Sir Henry Vane was member of a committee of the Council of State appointed in 1649 to consider alliances and relations with the European powers. Milton, as Secretary of the Council, had abundant opportunity to observe Vane's skill in diplomacy, his ability to "unfold the drift of hollow states hard to be spelled." Both Vane and Milton held to the doctrine, preeminently associated with the name of Roger Williams, of universal toleration, based on the refusal to the civil magistrate of any authority in spiritual matters. 1. Vane, young in years: Vane was born in 1613. 3. gowns, not arms: civilians, not soldiers. The expression is a Latinism, the _gown_ standing for the _toga_. 4. The fierce Epirot and the African bold: Pyrrhus and Hannibal. 6. hard to be spelled. Compare Il Penseroso 170. XVIII (1655). The historical event which furnishes the occasion of this sonnet is the persecution of the Protestant Waldenses by the Piedmontese and French governments, at the time of Cromwell's Protectorate. Cromwell's vigorous and successful intervention was the means of staying this horror, and gives evidence of the respect entertained for his government among the states of Europe. 4. when all our fathers worshiped stocks and stones. Christianity had been introduced into the Waldensian country while Britain was still pagan.