Looking back, Jackson might have been doing Microsoft and certainly shareholders a favor by trying to divide the company into parts, each of which could have competed in its own markets without inhibition of the others.

FORBES: Can Anybody Run Microsoft?

Although the seasonal equinoxes and solstices seem to divide the year into four equal parts, when you count the days of what we officially call winter, spring, summer and fall, each season is different, says Bing Quock, acting chairman of the Morrison Planetarium at the California Academy of Sciences.

NPR: Not All Seasons Are Created Equal

Should it be impossible to divide the number of cardinals present into three equal parts, for the validity of the election one additional vote is required.

NPR: The Papal Transition: An Overview