The raising of the real wage of England (due to the shortage of labour as a result of the reduction in population), a trait shared across Western Europe, which in general led to a real wage in 1450 that was unmatched in most countries until the 19th or 20th century.
the drawing represent slaves
If you rapidly scroll your mouse back and forth over the box, (or ur finger) you will be able to read the message formed by all of the letters, which says "Click the 'V' in lives". So click on the letter V in the word "Lives"