Identity in the Eight Banners considers the subject of how identity was interpreted in China prior to and during the Manchu-led Qing dynasty (1644–1912). China consisted of multiple ethnic groups, primarily Han, Mongol and Manchu. Identity, however, was defined much more by culture, language and participation in the military (the Eight Banners) until the Qianlong Emperor resurrected the ethnic classifications.
The Eight Banners represented military organisation and served as the primary organisational structure of Manchu (Jurchen) society. The banner armies gradually evolved over time to include members from non-Jurchen ethnic groups such as the Mongols and Han Chinese. There were three main types of banners: Manchu Eight Banners (滿洲八旗; mǎnzhōu bāqí), Mongol Eight Banners (蒙古八旗; ménggǔ bāqí) and Han Military Eight Banners (漢軍八旗; hànjūn bāqí)
Beginning in the late 1620s, the Jurchens started incorporating Mongol tribes, which they either conquered or were allied with, into the Eight Banners system. The Han Chinese who first joined the Eight Banners were replacements for Jurchen soldiers in existing banners who were killed in battle. However, over time, as more Han soldiers joined the banners, the Jurchens decided to form a separate group for them. This group, known as the "Old Han Army" (舊漢軍; jiù hànjūn), was mainly used as infantry support. In 1631, a separate Han artillery corps was formed. Four more Han banners were created in 1639. By 1642, the full eight Han banners were established.
The Han banners were known as "Nikan" Banners and were composed of a large number of Han prisoners-of-war and defectors. Since many of these Han men were single, they married Jurchen women. Over time, there were more and more Han Chinese joining the banners, such that they started to outnumber the Jurchens. The Han Chinese and Jurchens in Liaodong (part of present-day Liaoning Province) started mixing their cultures. Many bannermen forged genealogies for themselves or decided whether to join a Jurchen or Han banner.