They
were
the
prehistoric
inhabitants
of
the
Great
____________________
.
the
____________________
settled
along
the
western
and
southern
parts
of
____________________
,
and
then
spread
further
north
as
well
as
to
____________________
.
The
seconds
invaders
the
____________________
began
to
arrive
from
north
-
west
____________________
from
____________________
B
.
C
.
The
Celts
were
technically
advanced
and
they
lived
on
fishing
,
hunting
and
agriculture
.
In
____________________
BC
,
Celtic
Britain
was
in
turn
invaded
,
this
time
by
the
____________________
under
____________________
____________________
.
Caesar's
two
invasions
did
not
conquer
Britain
,
but
established
it
as
a
major
trading
partner
of
Rome
.
As
the
Roman
Empire
declined
,
its
hold
on
Britain
loosened
.
By
____________________
AD
,
Roman
forces
had
been
withdrawn
,
and
small
,
isolated
bands
of
migrating
____________________
began
to
invade
____________________
.
There
seems
to
have
been
no
large
"
invasion
"
with
a
combined
____________________
or
fleet
,
but
the
____________________
,
notably
the
____________________
,
____________________
,
and
____________________
,
quickly
established
control
over
modern
-
day
England
.
