These numerals (with slight variations) were in use up to the 4th century. During the Gupta period (early 4th century to the late 6th century), the Gupta numerals developed from the Brahmi numerals and were spread over large areas by the Gupta empire as they conquered territory.
From 1774 until about 1832, treaties between individual sovereign American Indian nations and the U.S. were negotiated to establish borders and prescribe conditions of behavior between the parties
