What
does
a
historian
do?
What
is
History?
What
do
historians
look
for?
People
and
events
of
the
past;
• What
happened?
• How
did
people
do
things?
• How
did
things
change?
• How
did
cultures
change?
• Why
did
cultures
change?
• Effects
&
results
of
these
changes.
Who
are
the
historians?
1. People
who
study
history.
What
is
their
job?
1. To
examine
the
causes
or
reasons
for
what
happened
in
the
past.
2. To
look
for
effects
&
results
of
these
events.
Why
do
we
study
history?
We
study
history
because
“learning
about
the
past
helps
us
understand
the
present
&
make
decisions
about
the
future.”
Periods
of
History
Iden/fy
-‐
measure
-‐
Label
the
periods
Decade
=
group
of
10
years
Century
=
group
of
100
years
Millennium
=
group
of
1000
years
Eras:
1st
Prehistory
=
Time
before
wriIng
(
It
was
invented
5500
years
ago)
2nd
Ancient
History
=
B.C.
/ll
A.D.
500
3rd
Middle/Medieval
History
=
A.D.
500
/ll
A.D.1400
4th
Modern
History
=
A.D.
1400
/ll
Today
J
How
to
write
the
date?
B.C.
means
before
Christ
A.D.
means
In
the
year
aOer
the
lord.
200
B.C.
(Always
wriPen
aOer
the
date)
A.D.
2015.
(Always
wriPen
before
the
date)
Timelines
It
tracks
the
/me
and
shows
the
sequence
/
order
of
events.
(What
happened
first,
next
&
last)
Calendars
It
arranges
the
days
in
order.
Almost
40
calendars
were
made
in
the
process
of
its
produc/on
The
base
of
our
modern
calendar
was
made
by
Julius
Caesar.
The
Gregorian
calendar
followed
today
was
done
by
Pope
Gregory.
It
was
mostly
based
on
Caesar’s
calendar.
Our
Hijri
calendar
was
based
on
Prophet
Mohammad’s
Hijra
to
Madinah
in
622
A.D.
(It
was
based
on
the
shapes
of
the
moon.)