oo. Master Timeline
The following contains spoilers for all current installments. This is meant to clear up any confusion regarding the chain of events, since things are written out of order.
April 9, late 1800s: Shiwon born
February 9, late 1800s: Han Geng born
April 4, early 1900s: Eunhyuk born
January 1, 1922: Sungmin born
August 24, 1938: Yesung born
January 4, 1943: Sungmin (21) turned - In the Clear
Fall, 1950: Shiwon and Eunhyuk meet
Spring, 1965: Sungmin meets Shiwon and Eunhyuk - In the Clear
July 1, 1983: Leeteuk born
July 10, 1983: Heechul born
January 17, 1985: Kangin born
September 28, 1985: Shindong born
October 15, 1986: Donghae born
June 21, 1987: Ryeowook born
August 21, 1987: Kibum born
February 3, 1988: Kyuhyun born
October 11, 1989: Henry born
July 27, 1996: New Jersey Incident - In the Clear
November 3, 1996: Donghae (10) adopted by Shiwon
Spring, 1999: Ryeowook (11) found by Vince's group
Fall, 1999: Leeteuk (16) meets Kangin (14)
Spring, 2001: Leeteuk (18) graduates and is partnered with Kangin (17)
Summer, 2003: Leeteuk (20) marries Sharon
Summer, 2006: Ryeowook (19) turned
October 16, 2006: Donghae (20) turned - Kaleidoscope
Winter, 2007: Eunhyuk leaves
April 11, 2007: KangTeuk (22, 23) incident, Sharon dies
April 27, 2007: Kibum (20) turned - Strings Attached
September 6, 2007: Kyuhyun (19) meets Sungmin - A Song for Waking
December 5, 2007: Kangin (22) and Leeteuk (24) arrive in the City
January 10, 2008: Ryeowook and Yesung arrive in the City - Promise to Keep
March 10, 2008: Kangin (23) and Leeteuk (24) meet Sungmin, Donghae, and Kibum - Make a Deal with the City pt.2
April 9, late 1800s: Shiwon born
February 9, late 1800s: Han Geng born
April 4, early 1900s: Eunhyuk born
January 1, 1922: Sungmin born
August 24, 1938: Yesung born
January 4, 1943: Sungmin (21) turned - In the Clear
Fall, 1950: Shiwon and Eunhyuk meet
Spring, 1965: Sungmin meets Shiwon and Eunhyuk - In the Clear
July 1, 1983: Leeteuk born
July 10, 1983: Heechul born
January 17, 1985: Kangin born
September 28, 1985: Shindong born
October 15, 1986: Donghae born
June 21, 1987: Ryeowook born
August 21, 1987: Kibum born
February 3, 1988: Kyuhyun born
October 11, 1989: Henry born
July 27, 1996: New Jersey Incident - In the Clear
November 3, 1996: Donghae (10) adopted by Shiwon
Spring, 1999: Ryeowook (11) found by Vince's group
Fall, 1999: Leeteuk (16) meets Kangin (14)
Spring, 2001: Leeteuk (18) graduates and is partnered with Kangin (17)
Summer, 2003: Leeteuk (20) marries Sharon
Summer, 2006: Ryeowook (19) turned
October 16, 2006: Donghae (20) turned - Kaleidoscope
Winter, 2007: Eunhyuk leaves
April 11, 2007: KangTeuk (22, 23) incident, Sharon dies
April 27, 2007: Kibum (20) turned - Strings Attached
September 6, 2007: Kyuhyun (19) meets Sungmin - A Song for Waking
December 5, 2007: Kangin (22) and Leeteuk (24) arrive in the City
January 10, 2008: Ryeowook and Yesung arrive in the City - Promise to Keep
March 10, 2008: Kangin (23) and Leeteuk (24) meet Sungmin, Donghae, and Kibum - Make a Deal with the City pt.2