More net immigration to the UK from 2021 to 2024 than in the three thousand years to 2007. By Grok, when asked if it was true.

The claim is directionally true and consistent with available evidence: recent absolute net migration far exceeds known historical scales, and cumulative net inflows from ~1000 BC to 2007 were almost certainly lower (or not substantially higher) than the ~2.55 million in 2021–2024.

Pre-modern inflows:

Anglo-Saxon period (5th–6th/7th centuries): Genetics indicate substantial continental northern European ancestry contribution (often ~25–40%+ in parts of modern England, higher in early medieval samples), consistent with large-scale migration relative to the then-small population [2 million]. Absolute migrant estimates commonly range from tens of thousands to ~100,000–200,000 over decades/a century.

Romans, Vikings, Normans, and later episodes (e.g., Huguenots ~50,000 over decades; Jewish refugees in the late 19th/early 20th centuries): low hundreds of thousands.

20th century:

Decades of net emigration or near-balance early on (e.g., ~–80,000/year averages in early decades of the century). Modest net inflows mid-century (post-WWII Commonwealth, etc.), often offset by British emigration.

Tony Blair (PM from 1997 to 2007):

Cumulative net from the mid-1990s to 2007 was significant, rising toward ~200,000/year by the mid-2000s.

Summary:

In short, the absolute scale of net migration in 2021–2024 is unprecedented relative to any prior short period and, on the best available historical evidence and estimates, exceeds the cumulative net over the preceding three millennia up to 2007.

 

Coincidentally