1919.
1911 and 1912 were first experimental airmail deliveries and 1918 first extended airmail test.
It was invented in 1905 by the military
Depends on the class of mail and the time of year. In my experience, a first-class airmail letter takes around one week, and a package may take anywhere from a week or two (airmail), to four weeks or more (surface mail).
In924, the IBM Corporation was found. The first Macy's Thanksgiving parade and the first airmail services started in the US in this year also. Wrigley's Building in Chicago was completed.
The results of DV 2008 are not mailed. Only the winners will be mailed a letter with further details and instructions on the process from Jan-April the following year. If some candidates are disqualified for any reason more letters will go out until about October fo the same year. DV 2006 winners just received their letters earlier this year.
100 milllon
At least a billion. Im sexy :D
== == Rosh Hashanah begins at sunset on 12 September this year (2007 CE). Cards, therefore, should be mailed in time to arrive by ordinary post on 12 September. Further to the above, it is now 2009 (5769 by the Jewish calendar) and this year Rosh Hashanah starts at sundown on 18 September - so the cards should be mailed at lest two or three days prior to that date if they're to arrive in time.
it should start with a letter first
I'm not sure when it gets mailed but you usually get it in the first or second week of August (unfortunately). In the year 2012, the start test results will be email in late August/ early September. This is due to a large amount of security breaches during testing that's resulted in a delay in schools receiving results.
The delivery time for a letter mailed from Manila, Philippines, to Chicago, USA, typically ranges from 7 to 21 business days, depending on the postal service and any potential delays in customs. Factors such as the chosen mailing method (standard vs. express) and the time of year can also influence delivery times. It's advisable to check with the local postal service for the most accurate estimates.
1706, it is also that same year that the letter "pi" (from the Greek alphabet) was first used in publication.