RIP Margaret Hamilton, whose code saved the Apollo 11 Moon landing

What happened: Margaret Hamilton, who coined the term "software engineering" and led development of onboard flight software for NASA's Apollo program, died last week at age 90. Key numbers: Age 90. Born 1936 in Paoli, Indiana. Graduated Earlham College 1958. Presidential Medal of Freedom 2016. LEGO minifig 2017. Why it matters: Her Apollo code is credited with saving the Apollo 11 Moon landing. MIT's Olivier de Weck called her a pioneer and a fundamental contributor to the program's success.

Margaret Hamilton, who coined the term "software engineering" and led development of onboard flight software for NASA's Apollo program, died last week at age 90.

Her Apollo code is credited with saving the Apollo 11 Moon landing. MIT's Olivier de Weck called her a pioneer and a fundamental contributor to the program's success.