  We report on the final electroweak measurements performed with data taken at
the Z resonance by the experiments operating at the electron-positron colliders
SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH,
DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLD
experiment using a polarised beam at SLC. The measurements include
cross-sections, forward-backward asymmetries and polarised asymmetries. The
mass and width of the Z boson, $\MZ$ and $\GZ$, and its couplings to fermions,
for example the $\rho$ parameter and the effective electroweak mixing angle,
are precisely measured. The number of light neutrino species is determined to
be 2.9840+/-0.0082. The results are compared to the predictions of the Standard
Model. Electroweak radiative corrections beyond the running of the QED and QCD
coupling constants are observed with a significance of five standard
deviations, and in agreement with the Standard Model. Of the many Z-pole
measurements, the forward-backward asymmetry in b-quark production shows the
largest difference with respect to its Standard Model expectation, at the level
of 2.8 standard deviations. Through radiative corrections evaluated in the
framework of the Standard Model, the masses of the top quark and the W Boson
are predicted. These indirect constraints are compared to the direct
measurements, providing a stringent test of the Standard Model. Using in
addition the direct measurements of $\Mt$ and $\MW$, the mass of the as yet
unobserved Standard Model Higgs boson is predicted.
