Cochrane and McCrone argue that the thumbscrew entered Britain later than the invasion of the
Spanish Armada in the 16th century: "It has been very generally asserted," says Dr. Jamieson, "that part of the cargo of the invincible Armada was a large assortment of
thumbikens, which it was meant should be employed as powerful arguments for convincing the heretics." The country of the
inquisition was certainly a fit quarter from whence to derive so congenial an instrument; but other accounts, as we have said, and these apparently unquestionable, assign it a later introduction... In the torturing of [William] Spence,
Lord Fountainhall mentions the origin of the
thumbikens, stating that this instrument "was a new invention used among the colliers upon transgressors, and discovered by Generals
Dalyell and Drummond, they having seen them used in
Muscovy." The account which Bishop
Burnet gives of the torturing of Spence confirms the then recent use of the
thumbikens. ... This point we think is put beyond all doubt by the following act of the
privy council in 1684, quoted in Wodrow's invaluable history: "Whereas there is now
a new invention and engine called the thumbikens ... the Lords of His Majesty's Council do therefore ordain, that when any person shall be put to the torture, that the boots and the thumbikens both be applied to them..." As late as the mid-18th century, the ex-slave
Olaudah Equiano, in his autobiography
The Interesting Narrative of the Life of Olaudah Equiano, documented the use of thumbscrews to torture slaves. During this period (mid-18th century),
Thomas Clarkson carried thumbscrews with him to further his cause for the
abolition of the slave trade and later emancipation of slaves in the
British Empire. He hoped to, and did, inspire
empathy with the display of this and other torture devices used on slaves. They were used on
slave ships, as witnessed and described by Equiano and
Ottobah Cugoano. ==References==