  JWST was conceived and built to answer one of the most fundamental questions
that humans can address empirically: "How did the Universe make its first
stars?". Our First Lights At REionization (FLARE) project transforms the quest
for the epoch of reionization from the static to the time domain. It targets
the complementary question: "What happened to those first stars?". It will be
answered by observations of the most luminous events: supernovae and accretion
on to black holes formed by direct collapse from the primordial gas clouds.
These transients provide direct constraints on star-formation rates (SFRs) and
the truly initial Initial Mass Function (IMF), and they may identify possible
stellar seeds of supermassive black holes (SMBHs). Furthermore, our knowledge
of the physics of these events at ultra-low metallicity will be much expanded.
JWST's unique capabilities will detect these most luminous and earliest cosmic
messengers easily in fairly shallow observations. However, these events are
very rare at the dawn of cosmic structure formation and so require large area
coverage. Time domain astronomy can be advanced to an unprecedented depth by
means of a shallow field of JWST reaching 27 mag AB in 2 and 4.4 microns over a
field as large as 0.1 square degree visited multiple times each year. Such a
survey may set strong constraints or detect massive Pop III SNe at redshifts
beyond 10, pinpointing the redshift of the first stars, or at least their
death. Based on our current knowledge of superluminous supernovae (SLSNe), such
a survey will find one or more SLSNe at redshifts above 6 in five years and
possibly several direct collapse black holes. Although JWST is not designed as
a wide field survey telescope, we show that such a wide field survey is
possible with JWST and is critical in addressing several of its key scientific
goals.
