1724: Great Britain - Duke of Newcastle develops passion for electioneering politics, becomes Secretary of State, controls government patronage for nearly 40 years
1730: Great Britain - In early part of 1700s, death rate had surpassed birth rate; begins to reverse; after 1780 death-rate plummets - due to replacement of gin-drinking with beer-drinking after taxes increased and retail sales curtailed on former in 1750; medical care improves, as does agriculture, more food available
1730: Great Britain - Georg Brandt, a Swedish chemist, discovered the element cobalt. Cobalt is used in steel making, and is an essential part of vitamin B12.