As a political economist who has studied Puerto Rican political and economic change, I believe Hurricane Maria could be another watershed moment that redefines United States treatment of Puerto Rico.

San Felipe II in 1928 and San Ciprían in 1932 triggered political and economic changes in America’s largest colony that endured for generations. However, Puerto Rico remains an unincorporated territorial possession of the United States, subject to the plenary powers of Congress. The Puerto Rican government exercises only those powers that the Congress allows. In other words, it is still a colony.

The Neglected Island

In 1928, things were not well in Puerto Rico.

Three decades of US colonial rule had transformed Puerto Rico into a vast sugar plantation controlled by absentee corporations and a prized military base for protecting the Panama Canal. A classic study of Puerto Rico noted that “thousands are undernourished, or actually starving, while the products of the island bring more than $100 million a year. Disease is present everywhere.”

Luis Muñoz Marín, arguably one of Puerto Rico’s most famous political figures, wrote that Puerto Rico had been converted into a “land of beggars and millionaires . . . It is Uncle Sam’s second largest sweatshop.”

Puerto Ricans wanted to reform the colonial system that was responsible for these woes. In April 1928, Félix Córdoba Dávila, Puerto Rico’s resident commissioner in Washington at the time, complained that Puerto Ricans “are not asking for charity, but for rights.”

Then came Hurricane San Felipe II, a Category 5 hurricane.

The War Department reported that on Sept. 13, 1928, Puerto Rico “was struck by the most devastating hurricane in its history, and the results of years of private and public enterprise were obliterated in a few hours.”

San Felipe II killed 312 people. It left a half a million Puerto Ricans homeless and destitute, almost one-third of the island’s population. Property damage, estimated at $85 million — about $1.57 billion in 2017 dollars — was unprecedented. According to the Red Cross, no sector of the economy was “left in a worse plight” than the coffee farms. Plantations lost almost their entire crop, and Puerto Rico never regained its prominence as a coffee exporter.

President Calvin Coolidge’s call for Americans to contribute to the American Red Cross generated $3.1 million in donations. The War Department dispersed more than $500,000 worth of supplies and reassigned Army officers, including medical staff, to Puerto Rico. Congress established the Puerto Rican Hurricane Relief Commission in 1928 with $8,150,000 to provide loans for rehabilitating coffee plantations, reconstruction and jobs. US authorities reported that Puerto Ricans were “undismayed and undiscouraged,” and as “bending every effort to create from the ruins a greater Puerto Rico.”

At the same time, San Felipe II led to increased opposition to US colonial rule. The Nationalists and the Union Party emerged as vocal critics of US colonial policy. Many Puerto Ricans portrayed the federal government’s response to San Felipe II as charity that failed to alter the regime of colonial rule and absentee capital — the root of Puerto Rico’s misery.

Four years later, in September 1932, San Ciprían, a Category 4 hurricane, struck Puerto Rico.

It left 225 dead and caused $35 million damage (about $644 million in 2017). The Red Cross director reported: “The acute and intense hurricane surpasses anything he has seen in his career.” San Ciprían intensified the misery that afflicted Puerto Rico. The majority of Puerto Ricans lived a precarious existence. They lacked reserves to survive the ravages of any hurricane for long.

The Army, private relief organizations, Red Cross, colonial administration and federal government took action to prevent a humanitarian catastrophe. In August 1933, President Franklin Roosevelt created the Puerto Rican Emergency Relief Administration and charged it with providing “relief for the destitute unemployed of the island.” The agency’s director acknowledged the desperate need for aid, but noted that it should be temporary. Puerto Ricans, he wrote, “were an industrious people with a real desire to work and distinct aversion to charity and relief.”

The creation of the Puerto Rican Emergency Relief Administration was an important change in US colonial policy. The scale and severity of Puerto Rico’s humanitarian crisis was beyond the capacity of the charity-focused, volunteer approach of the Red Cross and other organizations. A federal agency had stepped in.

Although the agency saved lives, it was not well-funded. Governor of Puerto Rico Blanton Winship complained in 1935 that “Puerto Rico continues to receive only a small portion of the funds to which the island is rightfully entitled.” These relief efforts did little to mitigate political discontent.

Calls for independence escalated. Puerto Ricans denounced the corrupt colonial administration that opposed the federal agency, blocked land reform, and was solidly in the pocket of the absentee corporations. Labor strikes broke out throughout the island, and often turned violent. The colony was on the verge of collapse.

The two hurricanes were a wake-up call for federal authorities to the failures of colonialism. San Felipe II and San Ciprían set in motion a process of reform that culminated in the Commonwealth of Puerto Rico in 1952. The government of Puerto Rico was unofficially given autonomy to manage domestic affairs, including the economy.