Charged-particle anisotropy over pseudorapidity and transverse momentum ranges of 0<$\eta$<3.5 and 0<$p_{t}$<3 in AuAu Collisions at $\sqrt{s_{NN}}=200$GeV The BRAHMS' two rotatable spectrometers (MRS and FS) cover a wide range of pseudorapidities: 0<$\eta$<1 and 1.3<$\eta$<3.9, respectively. They are capable of measuring charged-particle spectra up to 3GeV/c in transverse momentum ($p_{t}$) and, coupled with the newly installed, silicon-strip flow detector, they are also capable of measuring the pt-dependence of the charged-particle anisotropy (flow). Since the flow signature is believed to be sensitive to the early evolution of the created medium in Heavy-ion collisions, it has been extensively measured at midrapidity using the Relativistic Heavy-ion Collider (RHIC). However, the unique capability of BRAHMS experiment to measure charged-particle production over a wide pseudorapidity range provides us with the further information for characterizing the initial evolution of collisions at RHIC energies. This talk will discuss the initial results obtained for the Run 4, AuAu collisions at $\sqrt{s_{NN}}=200$ GeV using the BRAHMS spectrometers.