This is nice illustration of how excessive data collection does not contribute any real insight. As best I can tell, Tantau introduced the rose in 1982 under the name FROHSINN 82. The rose was subsequently registered with the ARS as 'Tansinnroh'. Modern Roses has given different dates for the registration. Modern Roses 10 and XI say 1984, while Modern Roses 12 says 1985. I'll check with the registrar to see if she knows whether the changed date is a correction or a typo.
