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A nine-millennia reconstruction of decadal sunspot numbers derived from 10Beand 14C terrestrial archives for 6755 BC to 1885 AD has been extended to thepresent using several other messengers (Observed Sunspot Number, Group Number,range of the diurnal variation of the geomagnetic field, and the InterDiurnalVariation of the geomagnetic Ring Current) and scaled to the modern SILSOVersion 2 sunspot number. We find that there has been no secular up tick ofactivity the last three hundred years and that recent activity has not been outof the ordinary. There is a sharp 87.6-year peak in the power spectrum, but nosignificant power at the Hallstatt 2300-year period. The reconciliation of thecosmogenic record with the modern sunspot record could be an important step toproviding a vetted solar activity record for the use in climate research.

Up to Nine Millennia of Multimessenger Solar Activity