During agrarian times, it was back-breaking work. During the industrial revolution, it was in sweat shops. Once office became computerised, it became office drudge work. Industrial revolution came with promises of leisure, but they did not materialise (see "In Praise of Idleness" by Bertrand Russell. [1])
Incomes of the majority, and the debt due to consumerist needs of the majority are kept in balance so that no one has leisure time to fulfil their true human potential, and you need to work 3 decades to subsist.
I somehow tend to think that the coming A. I. revolution, if it does come at all, will leave things as they are in a new form - the more things change, the more they remain the same.[2]
[1] http://www.zpub.com/notes/idle.html
[2] https://en.wikipedia.org/wiki/Jean-Baptiste_Alphonse_Karr