1) 1840, and the Twopence Blue was issued at two days later. It is NOT an uncommon stamp, nor is it particularly expensive- about US $80 will get you a decent copy.
2) Will leave this to someone that follows the sport.
3) There are ROUGHLY 52 weeks in a year. Check this year's calendar- the first day was a Monday, and so is the last day, therefore there are 52 weeks plus one day.
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The key to everything is patience. You get the chicken by hatching the egg, not smashing it.
Ex-Editor, Hobbies and Sports, and Forum Moderator