1799: Great Britain - Deaths among women 1 in 913, children 1 in 115. For the first time London birth rate passes death rate, continues until introduction of water closet deposits effluence in Thames (source of potable water) and typhoid returns
1799: Great Britain - Eliza Acton Born. She wrote the first cookbook for the housewife, rather than for the professional chef.
1799: France - Joseph-Louis Proust, a French chemist, extracted sugar from grapes, and proved it identical to sugar extracted from honey.