Open Travel Guide
History of Cambodia

Cambodia History & Heritage Guide 2026

A historical companion to Cambodia — what happened, where to stand, and what survives.

Cambodia captivates visitors with the magnificent Angkor Wat temple complex, French colonial architecture, and pristine tropical beaches. From the bustling capital of Phnom Penh to the serene countryside, Cambodia offers an unforgettable blend of ancient history, vibrant culture, and warm hospitality.

Cambodia's history spans over 2,000 years from the Funan Kingdom through the glorious Khmer Empire, which at its peak dominated most of mainland Southeast Asia and produced Angkor Wat — the world's largest religious monument. The empire's decline led to centuries of conflict with Vietnam and Thailand, French colonial rule from 1863 to 1953, and the catastrophic Khmer Rouge genocide from 1975-1979 which killed an estimated 1.7 million people. Modern Cambodia has rebuilt dramatically since the 1993 UN elections and today balances rapid economic development with preserving its extraordinary cultural heritage.

Historical timeline

Key moments that shaped Cambodia.

  1. 1

    Funan Kingdom

    1st century AD

    The Funan Kingdom emerges in the Mekong Delta region as one of the first major polities in Southeast Asia. It becomes a powerful maritime trade empire connecting India and China, adopting Hinduism and developing an early version of Khmer culture.

  2. 2

    Chenla Kingdom

    550 AD

    The Chenla Kingdom rises to replace Funan, gradually expanding Khmer political power inland along the Mekong River. The period marks the development of distinctly Cambodian art forms and religious architecture.

  3. 3

    Khmer Empire Founded

    802 AD

    King Jayavarman II declares himself a universal god-king (devaraja) on Phnom Kulen mountain, unifying Cambodia and founding the Khmer Empire. This act marks the beginning of Angkor-era civilization and nearly 600 years of Khmer imperial dominance.

  4. 4

    Construction of Angkor Wat

    1113 AD

    King Suryavarman II begins construction of Angkor Wat as a state temple and royal mausoleum. Dedicated to Vishnu, the temple takes approximately 30 years to build and represents the pinnacle of Khmer architectural achievement.

  5. 5

    Jayavarman VII and Angkor Thom

    1181 AD

    King Jayavarman VII, Cambodia's greatest king, constructs Angkor Thom with the famous Bayon temple, Ta Prohm, and hundreds of hospitals and rest houses. The empire reaches its greatest territorial extent under his Buddhist rule.

  6. 6

    Fall of Angkor to Ayutthaya

    1431 AD

    Thai forces from the Ayutthaya kingdom sack and capture Angkor, forcing the Khmer court to abandon the capital and relocate to Phnom Penh. The great city is gradually swallowed by jungle over the following centuries.

  7. 7

    French Protectorate

    1863 AD

    Cambodia becomes a French protectorate, with France taking control of the country's foreign affairs while nominally preserving the Cambodian monarchy. French colonialism introduces Western architecture, roads, and the romanized Khmer script.

  8. 8

    Independence from France

    1953 AD

    King Norodom Sihanouk achieves full independence for Cambodia from France on November 9, 1953. The 1960s become a golden era of peace, culture, and development known as the Sihanouk era.

  9. 9

    Khmer Rouge Takeover

    1975 AD

    The Khmer Rouge under Pol Pot seizes Phnom Penh and begins a radical agrarian revolution. Cities are forcibly evacuated, currency abolished, and religious institutions destroyed. An estimated 1.5-2 million people die from execution, starvation, and forced labor over four years.

  10. 10

    Vietnamese Liberation and PRK

    1979 AD

    Vietnamese forces overthrow the Khmer Rouge and establish the People's Republic of Kampuchea. A decade of Vietnamese occupation follows while civil war continues in border areas. Cambodia slowly begins rebuilding from catastrophic destruction.

  11. 11

    UN Elections and Constitutional Monarchy

    1993 AD

    UN-supervised elections held in 1993 lead to a new constitution, restoring the constitutional monarchy with King Sihanouk. Cambodia begins its modern reconstruction period with international aid and economic development.

Historical eras

The chapters of Cambodia's past.

1st - 8th century AD

Pre-Angkor Kingdoms (Funan & Chenla)

The earliest Cambodian kingdoms traded with India and China, adopting Hinduism and Sanskrit language. The Funan kingdom was a powerful maritime empire while Chenla gradually consolidated Khmer identity and moved inland.

802 - 1431 AD

Khmer Empire

Cambodia's golden age when the god-kings built Angkor — a hydraulic city of temples, reservoirs, and canals that sustained a million people. At peak extent, the empire covered modern-day Thailand, Laos, and Vietnam.

1431 - 1863 AD

Post-Angkor and Dark Ages

Following the Thai sack of Angkor, the Khmer capital moved multiple times as the empire contracted. Cambodia suffered repeated invasions from Siam and Vietnam, losing large territories and struggling for survival as a nation.

1863 - 1953 AD

French Protectorate

French colonial rule brought Western-style architecture, rubber plantations, and the rediscovery and restoration of Angkor. The colonial period reshaped Phnom Penh with boulevards and buildings still visible today.

Historical sites

Places where Cambodia's past comes alive.

12th century (1113-1150 AD)

Angkor Wat

The world's largest religious monument and UNESCO World Heritage Site, built by King Suryavarman II. The five towers represent Mount Meru, with nearly 1,000 meters of intricate bas-reliefs depicting Hindu epics and Khmer daily life.

Where: Angkor Archaeological Park, 6 km north of Siem Reap

Admission: $37 (1-day Angkor Pass)

Late 12th century (1181-1218 AD)

Bayon Temple

The state temple of King Jayavarman VII featuring 54 towers adorned with 216 serene giant faces. The temple's three levels, detailed bas-reliefs of historical battles, and mysterious faces make it uniquely captivating.

Where: Center of Angkor Thom walled city, Siem Reap

Admission: Included in Angkor Pass

Late 12th-early 13th century

Ta Prohm

The famous 'jungle temple' where massive silk-cotton tree roots engulf ancient stone walls and doorways. Left partially unrestored to show nature reclaiming the site, Ta Prohm was featured in the Tomb Raider films.

Where: Angkor Archaeological Park, east of Angkor Thom

Admission: Included in Angkor Pass

Khmer Rouge period (1975-1979)

Tuol Sleng Genocide Museum (S-21)

The most important and sobering historical site in Phnom Penh — a former high school converted by the Khmer Rouge into a brutal interrogation and detention center where 17,000 people were tortured and killed. Preserved as it was found in 1979.

Where: Street 113, Boeng Keng Kang I, Phnom Penh

Admission: $3

Khmer Rouge period (1975-1979)

Choeung Ek Genocidal Center (Killing Fields)

The largest of Cambodia's Killing Fields where over 17,000 men, women, and children were executed and buried by the Khmer Rouge. A towering memorial stupa containing 8,000 skulls stands at the center of mass graves.

Where: Choeung Ek village, 15 km south of Phnom Penh

Admission: $6

10th century (967 AD)

Banteay Srei

The Citadel of Women — a small temple celebrated for the finest and most intricate stone carvings in all of Angkor. The rose-pink sandstone glows at sunrise, and the detail of every surface is extraordinary.

Where: 32 km north of Siem Reap, Angkor area

Admission: Included in Angkor Pass

1860s onwards (rebuilt 1919)

Royal Palace and Silver Pagoda

The official residence of King Norodom Sihamoni features golden spires, throne halls, and the famous Silver Pagoda with its floor of 5,000 silver tiles and emerald Buddha. One of the finest examples of Khmer royal architecture.

Where: Sothearos Boulevard, Phnom Penh

Admission: $10

Museums

Curated collections that tell Cambodia's story.

Museum

Angkor National Museum

An impressive modern museum in Siem Reap featuring galleries of Khmer sculpture, artifacts from Angkor, and multimedia presentations on Khmer civilization. The Gallery of a Thousand Buddhas is the centerpiece collection.

Hours: 8:30AM-6PM daily (until 6:30PM in high season)

Admission: $12

Museum

National Museum of Cambodia

The premier collection of Khmer art in the world, housed in a traditional red-painted pavilion in central Phnom Penh. Contains over 14,000 items including sculpture, ceramics, and bronzes dating from prehistoric times to the present.

Hours: 8AM-5PM daily

Admission: $5

Museum

Tuol Sleng Genocide Museum

The former S-21 Khmer Rouge prison preserved as a museum and memorial. The most visited and important historical site in Phnom Penh, containing photographs of thousands of prisoners, torture equipment, and survivor testimonies.

Hours: 8AM-5PM daily

Admission: $3

Museum

Cambodia Landmine Museum

Founded by former child soldier Aki Ra who single-handedly cleared thousands of landmines, this museum near Siem Reap explains the devastating legacy of unexploded ordnance and landmines still affecting rural Cambodia today.

Hours: 7:30AM-5:30PM daily

Admission: $5

Museum

Battambang Provincial Museum

Houses a significant collection of pre-Angkorian and Angkorian stone sculpture discovered in Battambang province, including lintels, steles, and architectural fragments. Small but historically rich collection in a colonial-era building.

Hours: 8AM-11AM, 2PM-5PM Tuesday-Sunday

Admission: $2

Historical tours

Guided experiences that bring history to life.

Tour

Walking tours

Free walking tours of Phnom Penh depart daily from the National Museum at 9AM; tip-based guides available near Central Market and riverfront. Siem Reap tours depart from Pub Street area at 8:30AM.

Tour

Day tours

Full-day guided Angkor temple tours $30-60 per person including licensed guide and tuk-tuk transport. Phnom Penh historical day tours visiting S-21 and Killing Fields cost $25-40 with guide.

Tour

Private tours

Private licensed English-speaking guides available at $40-80 per half day for temples, $50-100 for full-day history tours. The Cambodian Guides Association maintains a list of certified guides.