Year 40 ce

Construction

According to some sources Caligula orders a lighthouse some 38 m (124 ft) tall built at Boulogne, France. See also 283 bce Construction.

Greek sailors use monsoon winds to shorten the time of journeys from the Horn of Africa to southern India. See also 100 ce Transportation.

De materia medica by Greek physician Pedanius Dioscorides [b. Anazarbus (Turkey), c. 40 ce, d. c. 90] deals with the medical properties of about 600 plants and nearly a thousand drugs. See also 400 bce Medicine & health; 170 ce Medicine & health.