Scientists have discovered when and by what routes people first settled Australia and New Guinea

Recent research shows that humans first reached Sahul (Australia and New Guinea) around 60,000 years ago, following two primary migration routes from Southeast Asia. This supports the “long chronology” of settlement and challenges earlier ideas that later migrations displaced the first inhabitants.

A collaboration between the Archaeogenetics Research Group at the University of Huddersfield and the Centre for Maritime Archaeology at the University of Southampton has provided new insights into the first human settlement of New Guinea and Australia, improving our understanding of early seafaring and maritime movement.

During the last ice age, New Guinea and Australia formed a single landmass called Sahul. While Homo sapiens evolved in Africa, the timing and routes of their arrival in Sahul have been debated. New research, published in Science Advances, combined genetics, archaeology, earth science, and oceanography to investigate when, where, and how these early migrations occurred.

The study focused on mitochondrial DNA (mtDNA), inherited maternally, to reconstruct detailed maternal lineages. Analysis of nearly 2,500 mtDNA genomes from Aboriginal Australians, New Guineans, and Western Pacific and Southeast Asian populations showed that the oldest unique lineages date back about 60,000 years, supporting the “long chronology” of settlement. Most originated in northern Southeast Asia (northern Indonesia and the Philippines), while some came from southern regions (southern Indonesia, Malaysia, and Indochina), indicating at least two migration routes. Northern route lineages spread throughout New Guinea and Australia, whereas southern route lineages were mostly limited to southern Australia.

These findings were further validated using Y-chromosome and whole-genome data, alongside archaeological, paleogeographical, and environmental evidence. Although ancient DNA from tropical regions is scarce, one Indonesian Iron Age sample showed later “back” migrations from New Guinea, but it did not inform the initial settlement.

The results confirm that modern Aboriginal Australians and New Guineans descend from the first settlers who arrived around 60,000 years ago, rather than being replaced by later migration waves. Molecular clock analysis of the DNA lineages, calibrated using known settlement dates from remote Pacific islands, provided robust timing for these migrations and demonstrated continuity between the earliest settlers and present populations. 

Ireland’s shipwrecks offer up gold bars, an abandoned yacht and a captain’s parrot

Pieces believed to be from HMS Saldanha, which lost 273 crew in 1811 storm, recently washed up in Donegal

The MV Alta ghost ship ran aground near Ballycotton, Co Cork, in 2020.

A cannonball, a so-called “ghost ship,” and remnants of a vessel once transporting 43 tonnes (43,000 kg) of gold are among the objects that have washed up along Ireland’s coastline in recent years.

Under Irish law, anyone who discovers shipwreck material must report it to the Office of the Revenue Commissioners. To manage this process, the Department of Transport designates Revenue officials nationwide to serve as “receivers of wreck.”

These officials are responsible for securing wrecked items, determining their value, and attempting to identify their owners. Notices are posted at the nearest Garda station and Revenue office. If a salvager recovers the wreck, the receiver oversees its sale and ensures the salvager receives a share of the proceeds.

If no claim is made within a year, the wreck must be referred to the director of the National Museum for evaluation of its historical, archaeological, or artistic significance. Any unclaimed wreck after this period may be taken into State ownership.

Receivers of wreck also handle abandoned vessels located near the shore but underwater. In such cases, they are instructed to sail over the site, lower a lead line, and formally declare possession under statutory authority, as outlined in their operational manual.

Information on items taken into custody since 2015 was released to The Irish Times following a Freedom of Information request. Revenue recorded 20 such reports during this time, eight of which occurred last year.

Many entries reflect Ireland’s often grim maritime past, including vessels lost to torpedoes, mines, and severe weather, frequently with heavy loss of life.

In October, wooden remains believed to belong to HMS Saldanha appeared on Ballymastocker Beach in County Donegal. Built in 1807, the British frigate patrolled Irish waters during the Napoleonic Wars before being wrecked in a storm near Fanad Head in 1811, killing all 273 crew members. The ship’s captain’s parrot survived the wreck but was shot by a farmer the following year.

In October 2016, debris from the British steamship Boniface, including four portholes, washed ashore. The vessel had been sunk by a German U-boat near Tory Island in 1917.

That same month, a porthole from the SS Laurentic was recovered. The transatlantic liner struck mines near Lough Swilly in January 1917 while secretly transporting 3,211 gold bars to fund British wartime purchases. The sinking claimed 354 lives, and all but 22 of the gold bars were later salvaged.

In August 2022, the bell from HMS Hurst Castle was discovered on the coast and transferred to the National Museum. The Royal Navy corvette was torpedoed off Northern Ireland in August 1944, just one month after being commissioned, killing 17 sailors.

Some discoveries remain unexplained, including a possible cannonball found within a “solidified mass” off Rosslare, County Wexford, in 2015, and several unidentified maritime objects recovered near Fanad in 2022.

Not all recovered items are historic. Records also list abandoned yachts, fishing boats, and rowboats.

In February 2020, a receiver of wreck assumed control of the MV Alta after it ran aground near Ballycotton, County Cork. The vessel had been abandoned in 2018 when its engines failed en route from Greece to Haiti.

The Alta drifted unmanned for two years before landing on the Cork coast. The National Museum later determined it held no historical value.

The ship’s remains are still stranded at the site, despite environmental and safety issues, and there are no plans for removal. No ownership claim has been made, and it is unclear whether the owners were aware of the official notices.

Exhibition traces China’s long links with Kenya, from Admiral Zheng He to belt and road

National museum in Nairobi celebrates 620th anniversary of Ming dynasty navigator’s voyages and 62 years of modern bilateral ties

More than six centuries ago, around eight decades before Portuguese navigator Vasco da Gama, Chinese admiral Zheng He arrived on the eastern coast of Africa, commanding a vast fleet with more than 20,000 crew members.
The ships of the Ming dynasty endured powerful waves and crossed enormous distances during seven major maritime expeditions, reaching Southeast Asia, South Asia, West Asia, and eventually the eastern shores of Africa.

Despite these accomplishments, Zheng He is largely missing from Kenya’s history curriculum. To draw attention to these early connections with China, Beijing has been increasing financial support for archaeological work, DNA studies, and museum exhibitions.
By connecting China’s ancient Maritime Silk Road to its modern Belt and Road Initiative, Beijing seeks to emphasize historical relationships alongside present-day developments such as Kenya’s Standard Gauge Railway and the Lamu port.

The most recent example of this initiative is an exhibition at the National Museums of Kenya in Nairobi, marking both the 620th anniversary of Zheng He’s voyages and 62 years of the modern diplomatic relationship between the two nations.

Admiral Zheng He and his Ming dynasty fleet traversed vast distances on seven epic maritime expeditions.

At the exhibition’s opening on December 19, Chinese Ambassador to Kenya Guo Haiyan said that historic ports such as Mombasa and Malindi served as important stops for Zheng He, showing a long history of engagement grounded in cooperation rather than conquest.