What did Ambroise Paré do?

   He developed a new, more effective ointment for preventing infection and better ways to seal wounds during surgery.

He was a French barber surgeon who served in that role for kings Henry II, Francis II, Charles IX and Henry III. He is considered one of the fathers of surgery and modern forensic pathology and a pioneer in surgical techniques and battlefield medicine, especially in the treatment of wounds.

Explanation:

there should be recorded video of the class under the assignments for the day