Both were experiencing an unprecedented surge in murders.
This increase is due in part to an unprecedented surge in top wage incomes.
The unprecedented surge in competition has caused many exchanges to seek safety in size.
It could elevate our moods, cause an unprecedented surge in productivity at work and boost our economy to booming heights.
Then there's the unprecedented surge in corporate profits in the last three decades: US companies never had it so good.
Egypt experienced an unprecedented surge in 2008 in the political involvement of its citizens, whose activities flouted limitations imposed since 1981 by the state of emergency.
But now Britain's army of low-earning workers are flocking to Nick Clegg in an unprecedented surge in support for the Liberal Democrats.
It has also led to an unprecedented surge of protest, with journalists, students, academics and civil rights campaigners marching under the banner "We Will Not Be Silenced".
The unprecedented surge came as the dollar fell sharply against the euro and a senior Israeli politician once again raised the possibility of an attack against Iran.
We are told several times, for instance, that an unprecedented surge of Muslim newcomers followed the 1965 relaxation in the immigration laws.
In an unprecedented surge, more than 57,000 young migrants coming without their parents, most from Central America, have been apprehended at the southwest border since October.
