Teaching Jharkhand (JSSC) PRT (1 to 5) Mock Test 2023 General Knowledge Science Technology and Inventions
Johann Guttenberg developed the system of printing press by the year _______ and _______ became the first printed book.
1
1450; Psalter
2
1377; Jikji
3
1448; the Bible
4
1517; Ninety-five theses