Considering Anglo-Saxon migrations
Limited quantities
Until the early 20th century, historians had the idea that millions
of barbarians migrated to the south at the end of the Roman Empire.
More recently, that image changed. Today, most historians agree that no
more than 350 000 up to 500 000 people migrated during the period of
the ‘great migrations’.
That figure must be compared with the estimation
of the total population of the total Roman Empire during its the last
days: 50 million people, 30 million of them would live in the West. 96
% of them were farmers. So, half a million people would immigrate, or
2% of the local population at the utmost, and spread over a period of
at least 150 years. This means an average of 5000 men, women and
children per year, or 20 per day for the whole Western Empire! This
percentage is not comparable with present day immigration. Today,
immigration percentage is greater.
Travelling always was expensive. So, migrating
people (called tribes) moved in large groups, wagon trails. To be able
to supply themselves with food, they plundered the neighbourhoods when
they passed. It is a myth that the Romans forbade immigration into the
Empire. In fact, everybody was welcome into the Empire, as an
individual or as a family and as a new taxpayer. Plundering groups were
however not welcome for obvious reasons.
The surprisingly low migration rate is also valid
for the Anglo-Saxons migrations into Britain.
For a calculation of the population of Britain in
AD 428 click here
Estimation is that Britain had some 4 million
inhabitants in AD 410. At least 2.7 million lived east of the Pennines.
We know that Anglo-Saxons were invited in Britain as 'mercenaries'[1]
even before the fall of the Roman Empire. And that they were still
coming 150 years later. In reality, the total migration represented
probably no more than 35 000 up to 50 000 men, women and children,
although the majority must have been young men. The Anglo-Saxons came
over 4 or 5 generations.
Therefore, we must divide the total by 4 or 5 to
have a more precise idea about the real percentage of the Anglo-Saxons
part of the local population at any time during that period. The
equation (50 000 / 4 = 12 500 Anglo-Saxons per generation. 2 700 000
locals / 12 500 A-S *100=0,46%) gives us a continuous max. between
0,25% up to 0,46%. This percentage can be compared with the ‘classic’
0,5-1,5 % percentage for professional soldiers.
So, the Anglo-Saxons must have represented no
more than half of the professional soldier quantity
in Britain, which is consistent with the new version of the events
during the 5th century that I will develop next.
The number of North-Germans in Britain
was way too small to have any impact upon the local language.
Dr. Oppenheimer confirms that unambiguous North-German genetic markers
are almost absent in modern Britain.
The idea of a possible half a million invading
Anglo-Saxons is unlikely considering the fact that they had to come by
small boats from deep within Germany. The number and size of the ships
to perform such an operation would have exceeded 'Operation Dynamo’
(the Dunkirk-Dover evacuation of the British Army end May 1940).
Technically, only a slow and continuous 'migration' was possible. This
influx could therefore have been stopped easily by local Britons.
Recent scientific publications adopt the idea that the Anglo-Saxons had
not an overwhelming power upon the local population. The main reason is
very simple: the Anglo-Saxons had not enough people to do so. This
gives us a important clue that the Anglo-Saxons had to keep the local
population on their side. They simply were unable to cope with a mayor
rebellion, a general upraise.

The Fries lived amongst Angles
and Saxons. The zones on the picture are approximate. The etymology of
'Angle' is 'narrow region', related to 'angle' (hook) [2].
Available men
How much Anglo-Saxons were available for
Britain? The region they came from must have had some 0,7 - 1 million
inhabitants. Extract 1 % professional soldiers = 7000 - 10000 men. Most
of them already had work, were at the service of local 'kings' (see the
Finnesburgh fragment). Britain needed experienced soldiers the most.
So, we can estimate that 10% or an average of about 700 men were
available, and possibly came over. The renewal of this 'source' was
slow as a long training was necessary and people died young. The
occupation of soldiery always was hazardous. 500 men maximum per year
is the best estimation, 300 is more realistic.
The Romans actively recruited for their army. There are many examples
of the fact that they sometimes compelled people to join the legions.
The Britons had no other choice but to 'invite' soldiers passively. As
Britain needed an estimated 2 legions or 10 000 men to defend itself,
the whole operation 'Come and Join Us' needed 20 years at least, and at
best. 30 years is closer to reality. Thirty years later, this
Anglo-Saxon force represented 0,27% of the British population.
Compare: The size of the American Army in Iraq also
represents some 1 % of the population, but they are unable to maintain
law and order in the country. In fact, they are lucky that the Iraqi
target primarily each other. Gildas gives us the strong impression that
the Anglo-Saxons too were far from popular.
Reasoning further, it becomes clear that the late date
(446 - proposed by Bede) of the Adventus Saxonum is unlikely. The
rebellion happened just a few years later. This implies that no more
than 1500 Anglo-Saxons, at best, took over the country. This is hard to
believe. The early date (428) is more realistic. But a take
over was only possible by means of a concerted action. Only a strong
concentration of Anglo-Saxons could have achieved the 'conquest'.
Striking is that no early source mentions such a coordinated, central
lead action. In fact, they relate a very chaotic series of events. Only
the very late sources (Historia Britonum, Anglo-Saxon chronicle)
mention
some
battles
in
Kent.
Something
similar
in
the
rest of the
country was not reported. There is also no sign that the Anglo-Saxons
used Kent as a base for ensuing conquests.