  This Series of Articles provides a local resolution of this major
longstanding foundational problem between QM and GR, or, more generally,
between Background Dependent and Background Independent Physics. We focus on
the classical version; the concepts we use are moreover universal enough to
admit quantum counterparts. This requires a series of articles to lay out
because the Problem of Time is multi-faceted and is largely about interferences
between facets, with traditional solutions to individual facets breaking down
in attempted joint resolutions of facets. [98] already covered this at both the
classical and semiclassical quantum levels. This Series serves, firstly, to
isolate this resolution from [98]'s introductory and field-wide comparative
material, passing from an 84-part work down to just a 14-part one. Secondly, to
clarify that, at the usual differential-geometric level of structure used in
physical theories, our classical local resolution is entirely catered for by
Lie's mathematics. This renders our local classical part of the Problem of Time
understandable by a very large proportion of Theoretical Physics or Mathematics
majors.
  In this first article, we cover a first aspect: Temporal Relationalism. This
generalizes the facet traditionally known as the Frozen Formalism Problem, that
follows from the quantum form of GR's Hamiltonian constraint.
