  R Aqr is known to be a symbiotic binary system with an associated extended
emission nebula, possibly produced by a historic outburst. To find the
associated historic records, we searched for and compiled all 'Guest Star' and
'Peculiar Star' records in three Korean 'official' history books that cover
almost two thousand years, Samguksagi, Goryeosa, Joseonwangjosillok. In
addition to the record of A.D. 1073, previously noted by Li (1985), we have
found in Goryeosa another candidate record of A.D. 1074, which has the same
positional description as that of A.D. 1073 with an additional brightness
description. We examined various aspects of the two records and conclude that
they both are likely to be the records of outburst of R Aqr. This means that
there were two successive outbursts in A.D. 1073 and in A.D. 1074, separated by
approximately one year. Based on these records, we estimate the distance to R
Aqr to be 273 pc if the expansion of the nebula has been at a constant rate.
The brightness record of A.D. 1074 corresponds to the absolute magnitude at
outburst of M_(outburst) = -6.2 mag. ~ -5.2 mag. at this distance. The two
Korean records associated with R Aqr may provide astronomically meaningful
constraints to the outburst model of R Aqr and the formative process of its
nebulosity.
