CNN did an excellent summary of the millennium during 1999. They gave each century a single entry summary, and then drilled down in huge detail. Check it out here.
Their summary is as follows:
- 11 th century: sword
- 12th: axe
- 13th: stirrup
- 14th: scythe
- 15th: sail
- 16th: compass
- 17th: telescope
- 18th: furnace
- 19th: machine
- 20th: globe
They followed with this with some visions for the future, categorised under a number of headings, including: disease, education, faith, food, sports, money, artificial intelligence, national parks, space, fashion and music. Check it out here.