PAST
help us in understanding our present world in a much
better way.If we know how our ancestors lived or why the
wars were waged,we can understand the today's world
better and get ideas for fairer future.What appears to
us wrong today could have been right earlier..It is also
interesting to know how inventions that changed the way
we live are ;mental processing.
that was invented around 5000BC.and the invention
of the calendar, without which we cannot determine when
the important events happened in the past.
DO WE KHOW NOW ABOUT PAST.-Mainly the Historians or the Archaeologist are the people who make an attempt to find put about past as much as they can..The historians frequently refer to various sources of history.These sources can be clay tablets,grave inscriptions,,or simple letters,coins,Some times they have to decode the script, such as the hieroglyphs ,which was discovered in the Egyptians Pyramids .Archaeologist ,on the other hand dig places where they can find evidence of past human activity such as bones from the stone age or remains of buildings or vessels that fell down in wells.
How do historians determine the approximate date of an event- Many source text ,mainly those from the time after the birth of Christ ,give indication of the time of events , such as 'after the great volcanic eruption' with the help of such information , the historians can often find out when something happened .Sometimes even the year is given in the
text..One also compares the different sources and infers the actual sequence of events from this..Archaeologist combine the knowledge of different sources to draw inferences as well..They determine the age of the findings often with the help of materials which were used in a certain period of time.Modern methods like X-ray examination or radiocarbon dating provides additional information.
BC (BEFORE CHRIST) AND,AD (ANNO DOMINI)s . Most culture starts the calculation of their time with an event that was most important to them.For the Christian this was the birth of Jesus Christ.The year of birth of Christ is also known as 'the turn of the eras 'because there is a belief that among Christian that with the birth of Jesus Christ a' new time ' started .The counting of years was started again from one after this time.Everything that happened earlier was specified as 'before Christ' or 'BC'.
The Islamic calendar starts when the Prophet Mohammad left Mecca. in AD 622..In addition ,one year of the Islamic calendar is shorter than that of the Christian calendar. since it ends after nine new moons .
INVENTION OF THE CALENDAR- During the stone age ,human observed how the equinoxes (23 march and 22 september) repeated year after .Later , many races oriented itselves to the lunar year.After twelve full moons -354 days the year was complete and hence the lunar calendar was eleven days short of the solar calendar..The first solar calendar was created by Egyptians Although the start of the year did not get displaced by eleven days as in the lunar calendar,it got displaced by about a month every 120 years.To balance this anomaly , Julius Caesar introduced a leap year after every four year..This calendar was improved by Pope Gregory XIII in 1582.
WHAT IS TIME- Our Universe was born with the big bang and with it time was also born No one can explain exactly what it is .Albert Einstein, the famous physicist , tried it once and said time is a ';measure to arrange things one after other 'We defined equal sections from the second to the year to understand when an event occurred in the past.For five thousands years ,people have been trying to invent all possible instruments for measuring time such as sundials,water clocks and pendulum clocks.Since 1949 we have the precise atomic clock.Which becomes slow by one second in 30 billion years.
INTERESTING FACTS
DO WE KHOW NOW ABOUT PAST.-Mainly the Historians or the Archaeologist are the people who make an attempt to find put about past as much as they can..The historians frequently refer to various sources of history.These sources can be clay tablets,grave inscriptions,,or simple letters,coins,Some times they have to decode the script, such as the hieroglyphs ,which was discovered in the Egyptians Pyramids .Archaeologist ,on the other hand dig places where they can find evidence of past human activity such as bones from the stone age or remains of buildings or vessels that fell down in wells.
How do historians determine the approximate date of an event- Many source text ,mainly those from the time after the birth of Christ ,give indication of the time of events , such as 'after the great volcanic eruption' with the help of such information , the historians can often find out when something happened .Sometimes even the year is given in the
text..One also compares the different sources and infers the actual sequence of events from this..Archaeologist combine the knowledge of different sources to draw inferences as well..They determine the age of the findings often with the help of materials which were used in a certain period of time.Modern methods like X-ray examination or radiocarbon dating provides additional information.
BC (BEFORE CHRIST) AND,AD (ANNO DOMINI)s . Most culture starts the calculation of their time with an event that was most important to them.For the Christian this was the birth of Jesus Christ.The year of birth of Christ is also known as 'the turn of the eras 'because there is a belief that among Christian that with the birth of Jesus Christ a' new time ' started .The counting of years was started again from one after this time.Everything that happened earlier was specified as 'before Christ' or 'BC'.
The Islamic calendar starts when the Prophet Mohammad left Mecca. in AD 622..In addition ,one year of the Islamic calendar is shorter than that of the Christian calendar. since it ends after nine new moons .
INVENTION OF THE CALENDAR- During the stone age ,human observed how the equinoxes (23 march and 22 september) repeated year after .Later , many races oriented itselves to the lunar year.After twelve full moons -354 days the year was complete and hence the lunar calendar was eleven days short of the solar calendar..The first solar calendar was created by Egyptians Although the start of the year did not get displaced by eleven days as in the lunar calendar,it got displaced by about a month every 120 years.To balance this anomaly , Julius Caesar introduced a leap year after every four year..This calendar was improved by Pope Gregory XIII in 1582.
WHAT IS TIME- Our Universe was born with the big bang and with it time was also born No one can explain exactly what it is .Albert Einstein, the famous physicist , tried it once and said time is a ';measure to arrange things one after other 'We defined equal sections from the second to the year to understand when an event occurred in the past.For five thousands years ,people have been trying to invent all possible instruments for measuring time such as sundials,water clocks and pendulum clocks.Since 1949 we have the precise atomic clock.Which becomes slow by one second in 30 billion years.
INTERESTING FACTS
- 'Otze', the mummy found in Tyrol Alps in 1991, was of a person who died in 3300 BC .
- RELICS OF THE PAST.
- Archaeologists can also infer when a house was built from the annual rings of the wooden beams.
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