Well done Jeannie - here's my notes:

400-500 - TRUE(ish) - According to Gildas and Nennius, the British leader Vortigern arranged for a Saxon warband under Hengest and Horsa (both names mean "Horse") to settle in the country as federates for protection against the Scots (i.e. Irish) and Picts (i.e. Scottish). Nennius implies that the government officials who hired the Saxons not only feared the Scots and Picts, but also the Romans in Gaul and Ambrosius in Britain. If Vortigern was a leader of the Pelagian party in Britain, that fear would be understandable. When hard times came and the government was not able to meet its obligations to the Saxons, they revolted and ravaged the countryside. This seems to have been dated duting the 450s. Hengist and Horsa are unlikely to be the names of real people. Archaeological evidence also shows that various "germanic" tribes, including Angles and Saxons, had been settled in South and East England by the early 4th Century (i.e. during the Roman occupation).

Pretty close!

Walrus - well done on 1800-1900 - here's my notes:

1800-1900 - TRUE - The main building of the Crystal Palace was 1848 feet long and 408 wide, enclosing 772,784 square feet (19 acres), an area six times that of St. Paul's Cathedral. The structure contained 4000 tons of iron, 900,000 feet of glass, and 202 miles of sash bars to hold it all together. The profit from the 1851 exhibition, for which the Crystal Palace was built, was used to purchase land in Kensington, where several museums were built including the forerunner of the Victoria and Albert Museum. The Crystal Palace itself was dismantled at the end of the exhibition and reassembled in Sydenham, South London. There it stayed as a tourist attraction until it burned down in 1936.

1000-1100 ... Sorry, I forgot about Church courts. You may still be right, though and the date's obviously correct. Any further thoughts?

As far as the others go ... more info?