Britain did not convert to the Gregorian calendar until 1751, when 11 days had to be added to their dates to get the Gregorian dates. In 1639 they were 10 days behind the Gregorian calendar.
Re: Klein Tools Or Greenlee. Both Klein and Greenlee are TOP quality tools with a niche market. They have a few common tools (such as rabis and ratchet cutters) and either is worth buying over pretty much anything else. They are not really direct competitors. I prefer Knipex for most hand tools except linemans.
Okatsune Tools. We think our Okatsune brand tools are the best gardening tools in the world. Our favorites are the 101 and 103 bypass shears. They last forever and cut like butter. If you haven't tried Okatsune tools, you are in for a treat. This is not to say our other Japanese gardening tools aren't first rate.