1657

1657 (MDCLVII), she blein chadjin v'ee, ghow toshiaght Jelhune rere yn eaillere Gregoiragh, as blein chadjin ghow toshiaght Jerdein rere feaillere Yool.

Taghyrtyn
 20 Averil – Va seyrsnys craueeaght myr slane seyraanee giootit da Ewnyn Amsterdam Noa (haink dy ve Caayr York Noa ny s'anmey).
 Date gyn fys
 Screeu Christiaan Huygens y chied lioar er sheiltynys cosoylaght, De ratiociniis in ludo aleae ("Bentyn Rish y Resoonaght ayns Cloiaghyn Caa").

Ruggyryn
 11 Jerrey Geuree – Elizabeth van der Woude, screeudeyr Ollanagh (b. 1694)
 18 Mayrnt – Giuseppe Ottavio Pitoni, cummeyder Iddaalagh (b. 1743)
 25 Jerrey Souree – Philipp Heinrich Erlebach, cummeyder Germaanagh (b. 1714)
 8 Jerrey Fouyir – Wigerus Vitringa, peinteyr Ollanagh (b. 1725)

Baaseyn
 7 Toshiaght Arree – Cesare Dandini, peinteyr Iddaalagh (r. 1596)
 26 Mean Souree – Tobias Michael, cummeyder as caayneyder Germaanagh (r. 1592)
 1 Mean Fouyir – Arnold Vinnius, leighder Ollanagh (r. 1588)