Answers and decisions written by rabbinic leaders in response to questions, demonstrating the application of Jewish law to actual cases.
ראשונים
Medieval responsa (11th-15th century)
אחרונים
Later responsa (16th-20th century)
תשובות הרמב״ם
Responsa of Maimonides.
תשובות הרשב״א
14th-century responsa with over 3000 decisions.
נודע ביהודה
Influential 18th-century responsa.
חתם סופר
19th-century responsa.