Isotope dating old objects
The second assumption is that the Genesis creation "days" were exactly 24-hours in length. Although Archbishop Ussher assumed the Genesis genealogies were complete, it is clear from the rest of the Bible that those genealogies were telescoped (some names were left out for the sake of brevity), which is common in biblical genealogies but rare in modern genealogies.Similarly, the key genealogical terms (such as "son" and "father") have much broader meanings in Hebrew than their corresponding English words.For more detailed explanations of each topic, please click on the associated link.As indicated earlier, the Bible does not fix the age of the earth, contrary to the claims of Answers in Genesis.The intended meaning of the word should be determined from the context.More information and examples can be found in our article . The particulars are important, so let's look at what Genesis 1 says: Then God said, "Let the earth sprout vegetation, plants yielding seed, and fruit trees bearing fruit after their kind, with seed in them, on the earth"; and it was so.Not soon after the shooting, though, he was also reported to be dead.The age of the earth has been a topic of debate among Christians over the last two centuries.
Archbishop Ussher took the genealogies of Genesis, assuming they were complete, and calculated all the years to arrive at a date for the creation of the earth on Sunday, October 23, 4004 B. Of course, even assuming the method was valid, such an exact date is not possible from the genealogies of the Bible (Ussher assumed all the years the patriarchs lived were exactly 365.25 days long and that they all died the day before their next birthday).
There are a number of other assumptions implicit in the calculation.
The first, and foremost, assumption is that the genealogies of Genesis are complete, from father to son throughout the entire course of human existence.
The Hebrew word translated "son" can also have the meaning of "grandson," "great grandson," "descendant," etc.
An accurate understanding of biblical genealogies is difficult, yet it is important for the understanding of Scripture.