▁that ▁time ▁still ▁pract iced ▁in ▁Lith u ania . ▁The ▁work ▁also ▁served ▁to ▁counter ▁the ▁growing ▁threat ▁pos ed ▁to ▁Catholic ism ▁by ▁the ▁Re formation , ▁which ▁was ▁promoted ▁in ▁Lith u ania ▁by ▁the ▁mighty ▁Rad zi wi ł ł ▁family . ▁It ▁was ▁also ▁the ▁first ▁book ▁in ▁Lith uan ian ▁to ▁be ▁printed ▁in ▁the ▁Grand ▁Duch y ▁of ▁Lith u ania . ▁ ▁In ▁ 1 5 9 9 ▁D au k š a ▁published ▁another ▁important ▁work , ▁the ▁Lith uan ian ▁translation ▁of ▁the ▁Polish ▁language ▁collection ▁of ▁ser m ons ▁by ▁Jak ub ▁W uje k , ▁the ▁" Post illa ▁c athol ica ". ▁There ▁are ▁two ▁pre faces ▁to ▁this ▁work , ▁one ▁in ▁Latin ▁and ▁one ▁in ▁Polish . ▁In ▁the ▁Polish ▁pre face , ▁D au k š a ▁advoc ates ▁the ▁promotion ▁of ▁the ▁Lith uan ian ▁language ▁in ▁the ▁Grand ▁Duch y ▁and ▁gave ▁a ▁brief ▁definition ▁of ▁the ▁Lith uan ian ▁nation ▁and ▁state . ▁The ▁book ▁is ▁regarded ▁as ▁more ▁valuable ▁and ▁important ▁than ▁the ▁C ate ch ism , ▁and ▁constit utes ▁one ▁of ▁the ▁monuments ▁of ▁the ▁Lith uan ian ▁language . ▁ ▁In ▁his ▁transl ations , ▁D au k š a ▁used ▁the ▁central ▁High ▁Lith uan ian ▁dialect , ▁influenced ▁by ▁both ▁eastern ▁High ▁Lith uan ian ▁and ▁Sam og it ian . ▁As ▁one ▁of ▁pione ers ▁of ▁written ▁Lith uan ian , ▁he ▁is ▁cred ited ▁with ▁the