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.
Answer Wiki. Some great tools mentioned here like Lucid Chart, OmniGraffle and Visio. BUT I always find it a waste of time to draw Org Charts by hand or by making boxes and lines to connect them together because they are one dimensional and people are not. 1) They are a pain to update or change.