The students didn't pay any attention to the lecturer.
The lecturer wasn't paid any attention to by the students.
No attention was paid to the lecturer by the students.
a judge

The wounded were taken to hospital.
One of the wounded was taken to hospital.

the unknown
The unknown scares some of us.

British / Welsh / English / French / Dutch / Irish
The British always talk about the weather.
Chinese / Japanese / Portuguese / Vietnamese
 The Portuguese have always been good sea-farers.
Swiss
The Swiss are hard-working.

in the late 19th century = in the late 1800s
in the mid-19th century = in the mid-1800s

be interested in s-g: He is interested in reading.
take an interest in s-g: he takes an interest in politics.