There may not be exact dates, but there was certainly an approximate range of time from century X to century Y. What was it?
From the en.wikipedia.org
I can't comment on battery life just yet, but I'll update once I know what the approximate range is for just viewing and when EVDO is activated.
From the techcrunch.com
The proportionality between velocity and distance of astronomical objects is called the Hubble Constant, or Hubble parameter, and has been known within an approximate range for decades.
From the ocregister.com
Approximate price range is $4 to $20, depending upon the type of tea, the size of the pot and accompanying savories or sweets.
From the sfgate.com
The approximate percentage of dependency is expected to be somewhere in the range of 80%.
From the economist.com
Nevertheless, classical mechanics is still useful, because it is much simpler and easier to apply than these other theories, and it has a very large range of approximate validity.
From the en.wikipedia.org
It is to erase all the natural preconditions for happiness that a free-range farm works so hard to approximate.
From the theatlantic.com
Opaque white boxes indicate approximate segment boundaries and right steps in range front separating principal fault strands.
From the sciencedaily.com
In our own personal lives, who has influenced us save those whose family relations, social status, and range of interests most closely approximate our own?