# data[].attributes.body
4.543 billion years ago

# data[].attributes.body
4.51 billion years ago.

# data[].attributes.body
3.5 billion years ago

# data[].attributes.headline
the start of earth oxygen rich atmosphere

# data[].attributes.subject
the start of earth oxygen rich atmosphere

# data[].attributes.body
2.45 billion years ago

# data[].attributes.headline
protists emerge these are microscopic creatures defined as an organism

# data[].attributes.subject
protists emerge these are microscopic creatures defined as an organism

# data[].attributes.body
2.1 billion years ago

# data[].attributes.body
1 billion years ago

# data[].attributes.headline
hard shelled animals appear in the oceans 

# data[].attributes.subject
hard shelled animals appear in the oceans 

# data[].attributes.body
520 million years ago

# data[].attributes.body
240 million years ago

# data[].attributes.body
200,000 years ago

# data[].attributes.body
today