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.
I bought the Sears craftsman Variable speed Multi-tool at Sears approx. 15 months ago. I was using it a day ago and it just stopped working. I took it back to Sears and the cashier told me it was out of warranty and there was nothing he could because the warranty was only good for 12 months.