The Zanzibar Revolution of 1964: A Year of Turmoil and Union

On the morning of 12 January 1964, the quiet of Stone Town, Zanzibar, was shattered by gunfire. A band of insurgents, numbering between 600 and 800 men, moved through the narrow streets, overwhelming the island’s police force and seizing their weapons. Within hours, the Sultan of Zanzibar, Jamshid bin Abdullah, and his predominantly Arab government had been overthrown by the island’s majority Black African population. The Zanzibar Revolution, as it would come to be known, was the most violent outbreak of anti-Arab violence in postcolonial African history, and it set the stage for a dramatic political transformation that would culminate in the union of Zanzibar with Tanganyika just three months later. For contemporaries, the events of that January morning were both a shock and a culmination of long-simmering tensions over representation, race, and power in a small island nation that had only just gained independence from Britain.

What Happened?

Zanzibar, an ethnically diverse state consisting of several islands off the east coast of Tanganyika, had been formally separated from German East Africa in 1890 and had become fully independent in 1963, with responsibility for its own defense and foreign affairs as Britain gave up its protectorate. In a series of parliamentary elections preceding this change, the Arab minority—descendants of Omani settlers who had ruled the islands for centuries—succeeded in retaining the hold on power they had inherited from Zanzibar’s former history as an overseas territory of Oman. The African Afro-Shirazi Party (ASP), led by John Okello, grew frustrated by the lack of parliamentary representation compared to its share of votes in the July 1963 election.

On the morning of 12 January 1964, Okello mobilised around 600–800 men on the main island of Unguja. The insurgents overran the country’s police force and appropriated their weaponry, then proceeded to seize control of the capital, Stone Town. The Sultan, Jamshid bin Abdullah, was deposed, and his Arab government was overthrown. The revolution was marked by extreme violence, particularly against Arab civilians, as the Black African majority sought to overturn decades of Arab dominance. Within days, a new government was established, with Abeid Amani Karume as President and John Okello as a powerful figure behind the scenes.

The revolution sent shockwaves across the region. Tanganyika, under President Julius Nyerere, watched with concern as the new Zanzibar government aligned itself with radical elements. In a surprising move, on 23 April 1964, Tanganyika and Zanzibar signed an agreement to unite, creating the United Republic of Tanzania. The agreement was announced in a joint statement by Nyerere and Karume, and it was ratified by both parliaments within days. On 27 April 1964, the new state came into being, with Nyerere as its first president and Karume as vice president.

How It Was Seen at the Time

Contemporary observers were taken aback by the speed and violence of the revolution, and even more so by the sudden union. The New York Times reported on 24 April 1964 under the headline: “Tanganyika and Zanzibar Sign Agreement to Unite; Parliaments Must Ratify Surprise Decision by Two Presidents.” The word “surprise” captured the mood of the international community, which had not anticipated such a swift merger. Three days later, on 27 April, the New York Times announced: “TANGANYIKA GETS NEW RULE TODAY; Nyerere and Zanzibar Head to Govern Joint State.” The tone was one of cautious optimism, but also uncertainty about the stability of the new federation.

“The agreement, signed in Dar es Salaam, was described by both leaders as a step toward African unity, but many Western diplomats expressed concern about the influence of radical elements in Zanzibar.” — New York Times, 24 April 1964

In Zanzibar itself, the revolution was celebrated by many Africans as a liberation from Arab rule, but it also provoked fear among the Arab and Asian communities, many of whom fled the islands. The prevailing mood among the revolutionaries was one of triumph and determination, while the deposed Sultan and his supporters saw it as a catastrophic loss.

Historical Snapshot

Contemporary Newspaper Coverage

The international press covered the revolution and its aftermath extensively, though often with limited on-the-ground access. The New York Times provided some of the most detailed reporting, focusing on the political implications. On 24 April 1964, the paper reported the signing of the union agreement, emphasizing the “surprise decision” and the need for parliamentary ratification. The article noted that the two presidents, Nyerere and Karume, had acted without prior public discussion, reflecting the secretive nature of the negotiations.

On 27 April 1964, the New York Times ran a front-page story with the headline “TANGANYIKA GETS NEW RULE TODAY; Nyerere and Zanzibar Head to Govern Joint State.” The article described the formal establishment of the new state and the roles of the two leaders. The tone was factual but tinged with anxiety about the stability of a union between a mainland state and an island nation with a recent revolutionary past.

“The new nation, to be known as Tanzania, will be a republic within the Commonwealth, with Nyerere as president and Karume as first vice president.” — New York Times, 27 April 1964

Other newspapers, such as the London Times and East African Standard, also covered the events, often focusing on the violence and the exodus of Arab residents. The coverage reflected a mix of concern over communist influence—given Okello’s radical rhetoric—and hope for African unity.

What People Feared

In the immediate aftermath of the revolution, fears ran high on all sides. The Arab and Asian communities in Zanzibar feared for their lives and property, and many fled to the mainland or to the Arabian Peninsula. The new government, meanwhile, feared counter-revolutionary plots by the deposed Sultan and his supporters, who had fled to exile in Britain. Internationally, Western governments worried that Zanzibar might become a communist outpost, especially after John Okello’s fiery speeches and the recognition of the new government by the Soviet Union and China. There were also fears that the violence could spread to Tanganyika, where ethnic tensions existed, and that the union might be a prelude to a larger East African federation that could destabilize the region.

Some of these fears were rational, others exaggerated. The anti-Arab violence was real and resulted in thousands of deaths, though exact numbers remain disputed. The communist threat, however, proved less significant, as the new government under Karume eventually distanced itself from the most radical elements, and Okello was sidelined within months.

Aftermath

The immediate aftermath of the revolution was marked by consolidation and retribution. The new government, led by Karume, moved to dismantle the old order, confiscating Arab-owned land and businesses. Many Arabs and Asians left the islands, reducing the population significantly. The union with Tanganyika on 27 April 1964 created the United Republic of Tanzania, with Nyerere as president and Karume as vice president. The union was designed to prevent Zanzibar from falling into chaos or becoming a Cold War battleground, and it gave the mainland a strategic partner in the Indian Ocean.

In the short term, the union was seen as a success, but tensions persisted. Zanzibar retained a degree of autonomy, and Karume ruled with an iron hand until his assassination in 1972. The revolution and union fundamentally reshaped the political landscape of East Africa, and the legacy of 1964 remains a subject of debate in Tanzania today.

How Historians See It Today

Modern historians view the Zanzibar Revolution as a pivotal moment in the decolonization of Africa, but they also emphasize its violent and divisive nature. Contemporary reports often framed the revolution as a struggle for African majority rule, but later scholarship has highlighted the role of ethnic and racial tensions, as well as the personal ambitions of leaders like John Okello. Historians also note that the union with Tanganyika was not a foregone conclusion; it was a pragmatic decision driven by Cold War pressures and the need for stability. The revolution is now seen as a case study in the challenges of postcolonial nation-building, where the promise of liberation was often accompanied by authoritarianism and ethnic conflict. The exact death toll remains contested, with estimates ranging from hundreds to thousands, reflecting the difficulty of documenting violence in a chaotic period.

Timeline

• 1890 – Zanzibar becomes a British protectorate, formally separated from German East Africa.
• 1963 – Zanzibar gains full independence; parliamentary elections leave the Arab minority in power.
• 12 January 1964 – The Zanzibar Revolution begins; Sultan Jamshid bin Abdullah is overthrown.
• January–April 1964 – New government under Abeid Amani Karume; John Okello holds significant influence; anti-Arab violence continues.
• 23 April 1964 – Tanganyika and Zanzibar sign an agreement to unite.
• 27 April 1964 – The United Republic of Tanzania is formally established.

The Zanzibar Revolution of 1964 was a year of turmoil that ended with a union that would define the region for decades. The primary sources—newspaper reports, official statements, and the memories of those who lived through it—reveal a moment of both hope and horror. The revolution was a violent assertion of African majority rule, but it also exposed the fragility of postcolonial states. The union with Tanganyika, born of necessity, created a nation that has endured, but the scars of 1964 remain a reminder of the costs of political change.