17
.
was
the
religion
that
spread
the
most
through
the
Trans
-
Saharan
caravan
trade
and
along
the
Mediterranean
coast
of
Africa
.
18
.
A
popular
medical
encyclopedia
,
written
during
the
Muslim
Golden
Age
by
,
was
used
for
centuries
in
both
the
Arab
world
and
Europe
.
19
.
helped
spread
Islam
in
West
Africa
during
the
Mali
Empire
and
was
famous
for
his
hajj
to
Mecca
.
20
.
The
system
allowed
the
exchange
of
slaves
,
silk
,
and
spices
from
Asia
into
East
Africa
.
21
.
Many
religions
of
Africa
,
or
those
that
are
native
to
Africa
,
share
a
common
belief
in
animism
,
or
the
presence
of
spirits
within
nature
.
22
.
The
established
isolationist
policy
and
heavy
taxes
for
peasants
in
Japan
.
23
.
The
Catholic
Church
had
an
enormous
impact
on
the
daily
life
of
an
average
person
during
the
in
Europe
.
24
.
The
was
the
first
of
the
"
Gunpowder
Empires
"
to
use
gunpowder
artillery
,
such
as
large
cannons
,
to
expand
their
territory
.