  After a short essay on the current state of particle physics, I review the
antecedents of the modern picture of the weak and electromagnetic interactions
and then undertake a brief survey of the $SU(2)_{L}\otimes U(1)_{Y}$
electroweak theory. I review the features of electroweak phenomenology at tree
level and beyond, present an introduction to the Higgs boson and the 1-TeV
scale, and examine arguments for enlarging the electroweak theory. I conclude
with a brief look at low-scale gravity.
