Mario Botta

* 01. 04. 1943 - Mendrisio, Switzerland

80 years since born

Otto March

* 07. 10. 1845 - Berlin, Germany

† 01. 04. 1913 - Berlin, Germany

110 years since died

William Turnbull, Jr.

* 01. 04. 1935 - New York, USA

88 years since born

† 26. 06. 1997 - Sausalito, USA

Kiyonori Kikutake

* 01. 04. 1928 - Kurume, Japan

95 years since born

† 26. 12. 2011 - Tokyo, Japan

Hans Döllgast

* 01. 04. 1891 - Bergheim, Germany

132 years since born

† 18. 04. 1974 - Munich, Germany