Julio César Arana del Águila, (1864–1952) was a Peru

Peru

Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

vian entrepreneur and politician. A major figure in the rubber

Rubber

Natural rubber, also called India rubber or caoutchouc, is an elastomer that was originally derived from latex, a milky colloid produced by some plants. The plants would be ‘tapped’, that is, an incision made into the bark of the tree and the sticky, milk colored latex sap collected and refined...

 industry in the upper Amazon

Amazon River

The Amazon of South America is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined...

 basin, he is probably best known in the English-speaking world through Walt Hardenburg's 1909 articles in the British magazine Truth, accusing him of practices that amounted to a terroristic reign of slavery over the natives of the region. His company was investigated by a commission in 1910 on which Roger Casement

Roger Casement

Roger David Casement —Sir Roger Casement CMG between 1911 and shortly before his execution for treason, when he was stripped of his British honours—was an Irish patriot, poet, revolutionary, and nationalist....

 served.

Arana became a senator for the Department of Loreto

Loreto Region

Loreto is Peru's northernmost region. Covering almost one-third of Peru's territory, Loreto is by far the nation's largest region and also one of the most sparsely populated ones, due to its remote location in the Amazon Rainforest...

 from 1922–26 and as a result of the Salomon-Lozano Treaty

Salomón-Lozano Treaty

The Salomón–Lozano Treaty was signed in July 1922 by representatives of Colombia and Peru. The fourth in a succession of treaties on the Colombian-Peruvian dispute over land in the upper Amazon region, it was intended to be a comprehensive settlement of the long-standing border dispute between the...

, signed in Lima in 1927, Peru transferred his properties in the Putumayo to Colombia. He died aged 88 penniless in a small house in Magdalena del Mar

Magdalena del Mar

Magdalena del Mar, commonly known simply as Magdalena, is a seaside district of the Lima Province in Peru and one of the districts that comprise the city of Lima. Its current mayor is Francis James Allison Oyague...

, near Lima.