Mabel Hubbard Gardiner Bell as a girl, ca. 1860 —
Photo Credit: By Unknown -Public Domain, https://commons.wikimedia.org/w/index.php?curid=77358492

Mabel Gardiner Hubbard Bell (c. 1917) — wife of Alexander Graham Bell
Photo Credit: By Harris & Ewing - Public Domain, https://commons.wikimedia.org/w/index.php?curid=10906134

Gardiner Green Hubbard —
Photo Credit: By Otto Renard - Library of CongressCatalog: Public Domain, https://commons.wikimedia.org/w/index.php?curid=79883978

Bell's Master Telephone Patent — US Patent #174465, March 7, 1876
Photo Credit: By U.S.P.T.O. - Public Domain, https://commons.wikimedia.org/w/index.php?curid=12202170

Alexander Graham Bell —
Photo Credit: By Moffett Studio - Library and Archives Canada / C-017335, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1559

Tivadar Puskás —
Photo Credit: By Unknown - vmek.oszk.hu, Public Domain, https://commons.wikimedia.org/w/index.php?curid=14241811

Maribor, Slovenia — Maribor's Centre with Old Bridge along the Drava River
Photo Credit: By Janezdrilc - Own work, CC0, https://commons.wikimedia.org/w/index.php?curid=44714785

Gospić, Croatia — Panoramic view of Gospić, Croatia
Photo Credit: By INekic - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=3760170

Tesla's Birthplace — Rebuilt, Tesla's house (parish hall) in Smiljan, now in Croatia, where he was born, and the rebuilt church, where his father served. During the Yugoslav Wars, several of the buildings were severely damaged by fire. They were restored and reopened in 2006
Photo Credit: By I, MayaSimFan, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2796123

Nikola Tesla's father, Milutin —
Photo Credit: By Unknown - Public Domain, https://commons.wikimedia.org/w/index.php?curid=582713

Nikola Tesla statue — Nikola Tesla monument in Niagara Falls, Ontario
Photo Credit: By Milan Suvajac - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=52211796