Here are some one liners...
The Little Ice Age and the Problem with Error -- Sunspots disappear for 70 years and no one can explain it. I talk about the problem with the error in numbers and the Star Trek transporter.
Wallpaper Takes the Place of Tapestry -- It is handmade. I also talk about the window sash.
The English Civil War Lumbers On -- A list of key events but generally the Parliamentarians (Roundheads) are winning.
The Little Ice Age and the Problem with ErrorThis year begins 70 years with virtually ZERO sunspots reported. Of course, an absence of evidence is not evidence of absence. There are indications that the reports on solar events might be spotty and uneven in the 17th century. Yet future scientists will use these reports as if the readings were as methodical, accurate and precise as modern day measurements. It makes one uncomfortable that we are counting on these measurements to make decisions today, but the lack of solar activity in the 17th century corresponds with the worst drop in temperatures in the Little Ice Age and a change in the amount of carbon-14 in the air, coupled with a drop in the number of reports of the Aurora Borealis. Because of this corresponding evidence one can reasonably assert that there was a reduction in solar activity and it was really, really strange. As much as we want to believe that the Sun works in predictable cycles, scientists really can't explain 70 years with almost no sunspots. They can only say that it probably happened. 
Wallpaper Takes the Place of TapestryAs a wall decoration, some sort of paper wall covering has been around since the late 1400s but this year "paper tapestry" is just beginning to replace normal tapestries as the wall covering of choice for the discriminating palace or aristocratic manor. The paper is handmade and the decorations are painted on the paper or printed using woodblock stamps. Commercially viable production wallpaper won't be available until the early 1700s.   
The English Civil War Lumbers On
- * The Oxford Parliament was established by King Charles the 1st last year to raise money for the civil war. 
- * Oliver Cromwell becomes Lieutenant-General of the Cavalry. (Long Parliament) 
- * Thomas Fairfax becomes commander-in-chief. (Long Parliament) 
- * The New Model Army is the first army that is not tied to a specific area. (Long Parliament) 
- * Battles too numerous to mention mostly won by the Long Parliament troops who outnumber the Royalists 2-to-1. 
This Year on Wikipedia
Year 1645, Wikipedia.