The science of palæography—that is, deciphering old charters, diplomas, titles; investigating their authenticity and genuineness, and so on. Papebröch, the Bollandist, originated the study in 1675; but Mabillon, another Bollandist, reduced it to a science in his work entitled De re Diplomatica, 1681. Toustain and Tassin further developed it in their treatise entitled Nouveau Traité de Diplomatique, 1750-1760.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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