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Brazil–Venezuela border treaty of 1859

When
1859
Where
Signing place unresolved; legacy Mount Roraima attribution rejected
Episodes
1

A legacy record describes an 1859 Brazil–Venezuela border treaty under which the boundary between the Amazon and Orinoco basins would follow the water divide. No supplied passage confirms the treaty's existence, terms, date, or signing place; the record's Mount Roraima location is unverified.

Episodes

  1. 1859 (legacy-derived, unverified) · Signing place unresolved; legacy Mount Roraima attribution rejected1859 Border Treaty (legacy record)

    A legacy record states that Brazil and Venezuela agreed in 1859 to trace their border along the Amazon–Orinoco water divide; no supplied passage verifies this.

Background and detail

Background. Venezuela borders Brazil to the south, and its territory includes the Llanos plains stretching toward the Orinoco Delta as well as the Guiana Highlands, which contain the northern fringes of the Amazon Basin. A legacy record further states that an 1859 treaty aimed to define the Brazil–Venezuela boundary along the water divide between the Amazon and Orinoco basins; this aim is not verified by the supplied sources.

Treaty Terms. According to the legacy record, the agreement stipulated that the border be traced at the water divide separating the Amazon and Orinoco basins. The supplied passages do not state any treaty terms; they describe only the region's hydrology and terrain, including the Guiana Highlands and the Orinoco Delta, so the water-divide principle remains of unverified authenticity.

Historical Context. The treaty occurred during a period of political turmoil in Venezuela, including the Federal War (1859–63). The border definition was part of broader diplomatic relations, though the specific date and place of signing are not confirmed by the provided sources.

People involved

Sources

  1. Brazil–Venezuela relations Wikipedia, revision of 2026-08-08
  2. Venezuela Wikipedia, revision of 2026-10-03

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.