Dear Mario,

I have now read all your messages again.  As Jim
Talliman says...

> Thanks for some very interesting scholarship!

One important thing you said is:

  When in Italy the hour system changed with the
  new hours "ab occasu solis", nothing changed
  for lawyers and notaries, the roman civil day
  still ruled and it rules till now.

TO CONFIRM: this means that the legal day and the
legal date always changed at midnight in Italy (in
Roman times, in times when Italian hours were used
and, of course, today)?

You also say:

  When [in 1336] Milan built the first bell clock
  with 24 hours counted "ab occasu" (by sunset)
  something incredible happened... all Europe
  changed hour system...

This (almost) suggests that the introduction of
clocks was responsible for the change in hour
systems in Europe but you then explain that...

  It is not correct to say that clocks changed the
  time system ... because there exist clocks before
  the 24 italian hours and they can work with temporal
  hours...

I can believe that the early clock-makers tried to
show temporal hours.  IF such clocks existed then,
clearly, they would not change the time system because
they used old time system!

Here are two slightly different proposals.

 1.  It IS correct to say that EQUAL-HOURS clocks
     changed the time system (and the Milan clock
     is of special significance).

 2.  After the introduction of equal-hours clocks
     the time system changed but it is unwise to
     argue that these clocks CAUSED this change.

Which proposal do you prefer?

Very best wishes

Frank

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