Пре­об­ра­зуй­те, если это не­об­хо­ди­мо, слово DRAW так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Leonardo da Vinci made the first real studies of flight in the 1480s. He had over 100 ___________ that illustrated his theories on flight.