Living Reviews in Solar Physics

"A History of Solar Activity over Millennia"
Ilya G. Usoskin 

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1 Introduction
2 Solar Activity: Concept and Observations
2.1 The concept of solar activity
2.2 Indices of solar activity
2.3 Solar activity observations in the pre-telescopic epoch
2.4 The solar cycle and its variations
2.5 Summary
3 The Proxy Method of Past Solar-Activity Reconstruction
3.1 The physical basis of the method
3.2 Radioisotope 14C
3.3 Cosmogenic isotope 10Be
3.4 Other potential proxy
3.5 Towards a quantitative physical model
3.6 Solar activity reconstructions
3.7 Verification of reconstructions
3.8 Composite reconstruction
3.9 Summary
4 Variability of Solar Activity Over Millennia
4.1 Quasi-periodicities and characteristic times
4.2 Grand minima of solar activity
4.3 Grand maxima of solar activity
4.4 Related implications
4.5 Summary
5 Solar Energetic Particles in the Past
5.1 Cosmogenic isotopes
5.2 Lunar and meteoritic rocks
5.3 Nitrates in polar ice
5.4 Summary
6 Conclusions
7 Acknowledgements
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