[["The age of the world is estimated to be 4.5 billion years old by scientists.  According to the Bible, the world has existed for 6,000 years.  ", 493.0], ["Scientists throughout history have had this question. In the 1800s, they said the Earth was 20 million to 100 million years old.  In the early 1900s, they said 40 million years old.  In 1911 Scientists said it was 1.6 billion years. By 1956, Scientists believed it to be 4.5 billion years old. ", 92.0], ["According to the Big Bang theory of cosmology, the universe came into existence between 13.778 and 13.82 billion years ago.", 63.0]]
how many years has the world been in existence
history