Boundary disputes were a constant source of intercolonial irritation. There were long and vexatious boundary wrangles between Connecticut and her neighbors, Rhode Island, New York, and Massachusetts. In 1683 an agreement reached between Connecticut and New York was the basis of the present line, surveyed in 1878-1879; it was 1826 before the final survey between Connecticut and Massachusetts; the quarrel between Connecticut and Rhode Island was protracted and heated, the line between them not being definitively established until 1840. Wentworth, the first royal governor of New Hampshire (1740-1767), made large land-grants, which overlapped territory claimed by New York, and thus brought on a protracted boundary controversy between those two provinces. Patents covering both sides of Lake Champlain were alike issued by New York and New Hampshire; the settlers east of the lake organized in revolt, under the cognomen of Green Mountain Boys, and were preparing to set up a government of their own, when the Revolution broke out, and in 1777 the unacknowledged government of Vermont was formed. A settlement of the boundary was not reached until Vermont was admitted to the Union (1791). The boundary disputes of New York with Massachusetts and Connecticut were settled prior to the Revolution. In 1737 a boundary commission adopted the present line between Massachusetts and New Hampshire. The same commission established the present western boundary of Maine. In a contest between Massachusetts and Rhode Island, the former claimed a portion of the latter's territory, on the ground that it was included in the old Plymouth patent; but in the final settlement Rhode Island retained possession. The Penn and Baltimore families long wrangled over the boundaries between Pennsylvania and Maryland. An agreement was reached in 1732, and ratified by a convention in 1760: under its terms, Charles Mason and Jeremiah Dixon, two eminent London mathematicians, ran the famous "Mason and Dixon line" (1767), separating the southern colonies from the northern. The boundary line between the Carolinas was not defined until 1735-1746. To the north and west, English boundary disputes with the French led to protracted and harassing wars; while to the south, Georgia's claims clashed with those of the Spaniards in Florida, and during the war between Spain and England occasion was taken by Oglethorpe (1740), governor of Georgia, to invade Spanish territory (page 262, § 117). Sidenote: Spotswood's enterprising spirit.