Orthodox view on ecumenism and the calendar question

A collection of sources:

1. http://orthodoxinfo.com/ecumenism/

2. Orthodoxy and ecumenism a chronology (history)

Part 1: http://www.ortho-hetero.ru/history/106

Part 2: http://www.ortho-hetero.ru/history/107

Part 3: http://www.ortho-hetero.ru/history/110

Part 4: http://www.ortho-hetero.ru/history/111

Part 5: http://www.ortho-hetero.ru/history/112

Part 6: http://www.ortho-hetero.ru/history/113

Part 7: http://www.ortho-hetero.ru/history/114

Part 8: http://www.ortho-hetero.ru/history/115

Part 9: http://www.ortho-hetero.ru/history/116

Part 10: http://www.ortho-hetero.ru/index.php/history/637

3. Saint Justin (Popovich) The Orthodox Church and Ecumenism

https://azbyka.ru/otechnik/Iustin_Popovich/pravoslavnaja-tserkov-i-ehkumenizm/

4. Why an Orthodox Christian cannot be an ecumenist

https://azbyka.ru/pochemu-pravoslavnomu-hristianinu-nelzya-byt-ekumenistom

5. Ecumenism a path to perdition by Ludmila Perepelkina

https://russportal.ru/index.php?id=church_writing.perepiolkina_ld1992_00_001

6. Against false union by Alexander Kalomiros

https://nicefor.info/%d0%bf%d1%80%d0%be%d1%82%d0%b8%d0%b2-%d0%bb%d0%be%d0%b6%d0%bd%d0%be%d0%b3%d0%be-%d0%b5%d0%b4%d0%b8%d0%bd%d0%b5%d0%bd%d0%b8%d1%8f-%d0%b0%d0%bb%d0%b5%d0%ba%d1%81%d0%b0%d0%bd%d0%b4%d1%80-%d0%ba%d0%b0/

7. Seraphim (Rose) Orthodoxy and the Religion of the Future

https://azbyka.ru/otechnik/Serafim_Rouz/pravoslavie-i-religija-budushhego/1_2

8. Fr Theodore Zisis Good disobedience or bad obedience?

https://azbyka.ru/otechnik/Feodor_Zisis/blagoe-neposlushanie-ili-hudoe-poslushanie/

On the Calendar question by Fr Basile Sakkas

https://www.hotca.org/orthodoxy/orthodox-awareness/203-the-calendar-question

To translate the sites into your preferred language use google translator.