1826.  Marriages of Langethal and Middendorff.  Froebel publishes the
       “Education of Man” ("Menschen Erziehung").  Later he founds the
       weekly Family Journal of Education.

1827.  Letter to the Duke of Meiningen (translated in this present
       work), uncompleted, probably never sent to the duke.

1828.  Letter to Krause (partly translated in the present work).  Barop
       formally becomes a member of the Educational Community at
       Keilhau.

1829.  Plan for a National Educational Institute in Helba, under the
       auspices of the Duke of Meiningen, now completed, the whole
       Keilhau community having worked upon it under Froebel’s
       direction.

1830.  Death of Wilhelm Carl, one of the Keilhau community, by drowning
       in the Saale.

1831.  Froebel breaks with the Duke of Meiningen, and gives up the Helba
       project.

       Visit to Frankfurt, and meeting with Schnyder.

       Acceptance of Schnyder’s offer of his Castle at Wartensee.

       Opening of the Institution at Wartensee by Froebel and his nephew
       Ferdinand.

1832.  Barop goes to Wartensee.  Transference of the School from
       Wartensee to Willisau.  Froebel pays a short visit to Keilhau.

1833.  Froebel brings his wife to Willisau.  The Bernese Administration
       invites him to consider a plan for the foundation of an Orphanage
       at Burgdorf.  He is appointed lecturer for the Repetitive Courses
       for young teachers held there.  Langethal comes from Keilhau to
       Willisau, Barop returns to Keilhau.

1835.  Froebel, his wife, and Langethal undertake the foundation of the
       Orphanage for Bern, in Burgdorf.  Middendorff and Elise Froebel go
       from Keilhau to Willisau and join Ferdinand Froebel there. 
       Froebel writes “The New Year 1836 demands a Renewal of Life.”

1836.  Froebel and his wife leave Burgdorf for Berlin.  Ferdinand Froebel
       and Langethal take over the direction of the Orphanage.

1837.  Opening of the first Kindergarten in Blankenburg.

1838.  Commencement of Froebel’s Sunday Journal.

1839.  Froebel and Middendorff go to Dresden.  Death of Madame Froebel.

1840.  Guttenberg Festival (400th anniversary of the invention of
       printing).  Opening of the Universal German Kindergarten at
       Blankenburg, as a joint-stock company.  Froebel and Middendorff in
       the following years make several journeys from Keilhau to various
       parts of Germany endeavouring to promote the erection of
       Kindergartens.

1848.  General Congress of Teachers, called by Froebel, at Rudolstadt. 
       Second journey of Froebel to Dresden in the autumn.

1849.  Froebel settles at Liebenstein intending to train Kindergarten
       teachers there.  Work at Hamburg, first by Middendorff, then by
       Froebel.