Decades: 1330s BC 1320s BC 1310s BC 1300s BC 1290s BC - 1280s BC - 1270s BC 1260s BC 1250s BC 1240s BC 1230s BC
Significant People
... and will start rotating perpendicular to the force applied. This is why spinning gyro tops will not simply fall over, but start precessing around. (The precessing motion is ...