1042
Scientists uncovered the nutrients bees were missing — Colonies surged 15-fold
(www.sciencedaily.com)
This is a most excellent place for technology news and articles.
Just to give you some numbers:
World population 10k years ago (prehistoric times) was said to be around 10 million, then it increased 30x to 300 million by 1000 AD (medieval age) and then it increased 30x again during the modern age.
About that last increase during the modern age: a 3x increase in food production is due to the use in fertilizer (Haber-Bosch-process) and a 10x increase in food production is simply due to more land area being used for farming. Which was possible because a lot of deforestation projects, wood was cut down and wheat planted, and draining of swamps and such. Also modern agriculture to america.
So it's not just innovation (new fertilizer) but also quantitative scaling (more land areas used)