The chinese calender has been used for centuries, they still use it even now.
It was first used by the Greeks and then modified by the Chinese.
because the Chinese calendar is different from the calendar used in the US
There are various calendars used around the world now, like the Chinese calendar, but the main one, using the months from January to December is the Gregorian calendar.
This year (2012) is 4649 in the Chinese calendar. Your meaning of the old Chinese calendar is unclear
2010 is Year 4707 in the Chinese Calendar
No. There is the Gregorian calendar (used by Americans, Europeans, and Japanese), a Hebrew calendar, and a Muslim calendar at least. Here's a link to a Chinese calendar and an Indian calendar.
Because in the Chinese Calendar, which is the Lunar Calendar, it is the New Year. The Lunar Calendar and Solar Calendar is different.
1944 (Gregorian) was 4580 in the Chinese calendar
The Chinese lunar calendar does not use months, rather divisions. The Chinese lunar calendar has 24 divisions in a year.
the Chinese
Using the Chinese Calendar, 2007 is the year 4704.
Using the Chinese Calendar, 2007 is the year 4704.