 In 1841 Ivinskis passed the teacher's exams, and soon afterwards he received a Kaunas city teacher's certificate.He prepared the first Lithuanian calendar back in 1845, however due to lack of funds the calendar was not printed in Vilnius until a year later.His calendar "Metu skajtlus ukiszkas ant metu Wieszpaties" circulated until the Lithuanian press ban in 1864.