# data[].attributes.headline
longitude a distance east or west of the prime meridian usually measured in digress

# data[].attributes.subject
longitude a distance east or west of the prime meridian usually measured in digress

# data[].attributes.headline
latitude a distance north or south of the equator usually measured in digress

# data[].attributes.subject
latitude a distance north or south of the equator usually measured in digress

# data[].attributes.headline
entrepreneur a person who starts a new business 

# data[].attributes.subject
entrepreneur a person who starts a new business 

# data[].attributes.headline
expedition a long and carefully organized trip 

# data[].attributes.subject
expedition a long and carefully organized trip 

# data[].attributes.headline
astrolabe a tool that helped sailors use the sun and the stars to find their location 

# data[].attributes.subject
astrolabe a tool that helped sailors use the sun and the stars to find their location 

# data[].attributes.headline
magnetic compass a tool that shows which direction is north

# data[].attributes.subject
magnetic compass a tool that shows which direction is north

# data[].attributes.headline
navigation a science used by sailors to find their place and plan their route 

# data[].attributes.subject
navigation a science used by sailors to find their place and plan their route 